Mathematics by Age Restriction

Age Restriction

This page contains a set of links to mathematical exercises. They are ordered by age restriction. For each age, there are corresponding exercises grouped into separate categories. Expand the lists and see the proposed options for mathematical examples.

Recommended for children from five years old

Integer Examples

Beginner 1.1 ip

2+4=6

Beginner 2.1 ip

9-6=3

Beginner 3.1 ip

5-1=4

Step-by-step Tasks

1+2=3

1+4=5

1+2=3

1+3=4

7+1=8

3-1=2

6-2=4

5-3=2

6-1=5

4-2=2

6-3=3

Recommended for children from six years

Integer Examples

7+2=9

10-7=3

3+15=18

6+1+3=10

Step-by-step Tasks

2+7=9

3+2=5

8+2=10

4+7=11

4+6=10

5+4=9

5+3=8

2+6=8

3+8=11

4+7=11

5+0=5

3+6=9

6+8=14

5+9=14

6-2=4

10+4=14

7+10=17

9-4=5

10-5=5

11-2=9

13-3=10

15-4=11

13-6=7

15-7=8

13-3=10

17-8=9

10-8=2

12-9=3

20-0=20

19-10=9

Recommended for children from seven years

Integer Examples

8-1-5=2

20+33=53

95-41=54

53+12=65

1+3+13=17

1+(9-7)=3

Step-by-step Tasks

10+3=13

13+2=15

6+14=20

22+2=24

0+13=13

0+14=14

0+20=20

15-12=3

15+1=16

6+11=17

7+12=19

8-6=2

14-11=3

13-2=11

5-3=2

11-4=7

8-5=3

19-16=3

12-7=5

11-1=10

3×1=3

9×2=18

0×1=0

9÷1=9

Comparisons

Natural 1.1 ip

5 > 1

Natural 2.1 ip

4-3 < 3-0

Language Exercises

Russian Vocabulary 1.1

г рох

Recommended for children from eight years

Integer Examples

9-(17-9)=1

233+69=302

810-176=634

31+29=60

1+51-2=50

1+(3+13)=17

11×9=99

66÷22=3

9×10=90

32+48=80

92-14=78

10+76=86

Step-by-step Tasks

12+8=20

32-3=29

22+8=30

2+9=11

30+60=90

10+25=35

19-19+0=0

17-8=9

21-17=4

12-9=3

19-7=12

37-17=20

100-70=30

3×0=0

1×2=2

4×2=8

10×4=40

8×5=40

3×3=9

10×5=50

6×0=0

7×5=35

3×7=21

1×6=6

7×10=70

8×6=48

8×7=56

9×1=9

6×3=18

10×2=20

10×2=20

2÷2=1

20÷2=10

21÷3=7

12÷3=4

40÷4=10

6÷1=6

15÷5=3

24÷4=6

10÷1=10

48÷6=8

40÷5=8

28÷7=4

36÷4=9

50÷5=10

0÷8=0

35÷7=5

45÷9=5

35÷5=7

80÷8=10

10÷10=1

Comparisons

4×1 < 2×5

86 > 70

70-30 < 87-30

8÷2 < 7÷1

Equations

Linear 1.1 ip

x+4=8

Linear 2.1 ip

x÷5=1

Language Exercises

Russian Vocabulary 1.2

н уклюжий

Russian Vocabulary 2.1

лфавит

Russian Vocabulary 3.1

наш л

English Vocabulary 1.1

tr e

English Vocabulary 2.1

a ay

Lexicon 1.1

ag in [anew]

Lexicon 2.1

a nt [relative]

Recommended for children from nine years

Integer Examples

90-90=0

123-115+222=230

98+(88-86)=100

12×3=36

2×245=490

320÷32=10

38×24=912

8×5÷4=10

(21÷7)×3=9

24÷(4÷2)÷4=3

26÷3=8(2)

8129+385=8514

6531-2831=3700

4900+1028=5928

30×3=90

92÷4=23

12÷6-2=0

42-40÷20+36=76

60÷6=10

20÷7=2(6)

Step-by-step Tasks

2×21=42

2×11=22

10×3=30

10×2=20

4×13=52

5×18=90

12×3=36

2×31=62

3×20=60

19×6=114

7×14=98

5×6=30

11×8=88

3×6=18

11×9=99

6×14=84

6×20=120

10×14=140

6×12=72

34÷2=17

0÷11=0

51÷3=17

48÷3=16

0÷4=0

40÷5=8

16÷2=8

32÷2=16

100÷50=2

114÷6=19

84÷7=12

66÷6=11

72÷8=9

40÷5=8

108÷9=12

60÷6=10

480÷10=48

7÷1=7

32÷4=8

Comparisons

3×3 < 72÷3

87 < 580

800-401 < 190+410

12×6 > 54÷3

Equations

Linear 1.2 ip

7+x=27

Linear 2.2 ip

x÷20=2

Linear 3.1 ip

3×x-3=6

Language Exercises

Russian Vocabulary 1.3

впеч тлять

Russian Vocabulary 2.2

в сток

Russian Vocabulary 3.2

м дведь

English Vocabulary 3.1

t day

10+

Recommended for children from ten years

Integer Examples

764-(85+224)=455

56900+28668=85568

950543-250543=700000

597246-57246=540000

431-(247-156)=340

11×13=143

4×68=272

9800÷8=1225

7197÷3=2399

8×5÷10=4

120÷(4×2)=15

17×(39÷3)÷221=1

136÷7=19(3)

489918+312082=802000

820119-816514=3605

796529+201471=998000

8264×3=24792

1900×26=49400

120÷4=30

(41-37)×(10+5)=60

968-6×130=188

336÷24+576÷36=30

(13-7)×(21-15)=36

710÷2=355

189÷14=13(7)

Comparisons

Natural 0.3 ip

968 > 688

Natural 1.4 ip

201882 < 931350

Natural 2.4 ip

895326+79974 > 602031-124272

Natural 3.3 ip

1000÷20 < 813÷3

Equations

10-x=3

x+136=763

41×x=410

5×x+40=90

(x+1)×3=6

Rounding

Round 1.1 ip

155≈16

Round 1.2 ip

6039≈60

Round 2.1 ip

826-689≈14

Language Exercises

Russian Vocabulary 2.3

с рень

English Vocabulary 1.2

th rty

English Vocabulary 2.2

bec me

Lexicon 1.2

ph ne [call]

Lexicon 2.2

m in [chief]

Infinitive 1.1

relight relit [relight]

11+

Recommended for children from the age of eleven

Integer Examples

Beginner 0.5 ip

612415-407415=205000

Beginner 4.5 ip

160216+61763-190025=31954

Beginner 5.5 ip

77568+(248800+351933)=678301

Conversant 1.1 in

-10+7=-3

Conversant 1.5 in

-718439+495963=-222476

0-4-4=-8

880÷(11×2)×15=600

16×125÷20=100

(50÷10)×500=2500

960÷16×(90÷6)=900

600÷90=6(60)

24280×200=4856000

3162÷17=186

137×2+60÷2=304

7610-1020÷102=7600

3659×16+456=59000

60×38+91×594=56334

220-912÷(2+74)=208

(598-570)×(21+22)=1204

Divisor_ENG 1.3 ip

8897÷31=287

Remainder_ENG 1.3 ip

251÷28=8(27)

Decimal Examples

0.5+2+4=6.5

86.2-25.4=60.8

7.9+1.1=9

81-15=66

9.6-1-3.2=5.4

39.9+29+5.1=74

2+(6.6-0.2)=8.4

84-(7.9+52)=24.1

0.5÷1=0.5

3×1.6=4.8

96÷1.5=64

20.4÷3.4=6

Divisional_ENG 1.1 dp

96.9÷8.5=11.4

Fraction Examples

Numerator 1.1 fp

2/5+1/5=3/5

Comparisons

Natural 0.4 ip

293913÷51 > 128×26

Natural 3.4 ip

119800÷100 < 403155÷9

10-0 > -1-6

-3 < 2

1+1 > -1-9

2×(-5) < 4×(-2)

11.6 < 65.2

34+26.2 = 8.1+52.1

3/5 < 1/1

361/37 = 361/37

3/5-1/10 < 1/2+1/6

Equations

(x-70)×8=80

x×90=630

x÷8+922=927

80÷(45-x)=16

(5+x)×148=740

-2+x=8

-2×x=10

Rounding

68.5≈69

9.3+71.7≈81

691≈69

2352+1595≈39

147857≈148

244144≈244

5800-2094≈37

583433-140905≈443

29×29≈84

1117×5≈56

870504÷152≈6

Language Exercises

Russian Vocabulary 1.4

эпигра

Russian Vocabulary 3.3

знам нитый

English Vocabulary 1.3

pr per

English Vocabulary 2.3

contin e

English Vocabulary 3.2

cl an

Lexicon 1.3

else here [pronoun]

Infinitive 2.1

outsat [outsit]

12+

Recommended for children from the age of twelve

Integer Examples

(0+7)-(10-5)=2

12+(8-4)=16

(41-7)-(19-40)=55

9-2=7

-70+3=-67

2+11-14=-1

91-63-88=-60

10+(-9+1)=2

-10-(17-20)=-7

90-(100+10)=-20

(10+2)+(6-8)=10

-(9-19)-(11+5)=-6

-(50-68)-(67+38)=-87

20÷2×(78÷13)=60

738×345=254610

320970÷390=823

849×664=563736

1000÷4÷25=10

(20×25000)÷250=2000

200÷(2×5)×10=200

37500×2240=84000000

49987÷37=1351

-45÷5-51=-60

-91÷13+11=4

-20-7×8+23=-53

-51+20÷(-2-2)=-56

-50÷5=-10

8×(-8)=-64

10×(-7)÷2=-35

4×(-6×4)=-96

80÷2÷(-2×2)=-10

27246÷19=1434

Decimal Examples

38.43-34.77=3.66

16.63+65.61=82.24

75-48-27=0

84.01-(77.52-25.51)=32

-2+7.7=5.7

-65.5-19.4=-84.9

0.6-7.5=-6.9

-79.5+64=-15.5

-2.6+1.9-7.3=-8

-32+15.8+27.2=11

-8.4-(-8.7+1)=-0.7

18.8-(68.8-91.3)=41.3

48÷6=8

6.4÷32=0.2

1.2÷2=0.6

27×0.2=5.4

16.8÷2.4=7

6.84÷7.2=0.95

82.8÷23÷4.5=0.8

0.6×(0.5×5)=1.5

63.7-2.4÷1.2×24.7=14.3

Definition 1.1 dp

48.6+96÷2.5=87

Definition 2.1 dp

51.7+4×0.2×2.5=53.7

Definition 3.1 dp

(42.9+9.9)÷(80.5-32.5)=1.1

Negatory 1.1 dn

-50.6+33.6÷3=-39.4

Negatory 2.1 dn

22+32÷2.5×5=86

Residual_ENG 1.1 dp

57÷3=19

Divisional_ENG 1.2 dp

0.46÷0.02=23

Fraction Examples

Numerator 0.1 fp

1/2+(1/6+1/9)=7/9

Numerator 0.2 fp

6/23+2/23+436/69=20/3

Numerator 1.2 fp

7/6+23/78=19/13

Numerator 2.1 fp

3/8+1/8+2/5=9/10

Numerator 2.2 fp

154/85+121/85+77/34=11/2

Numerator 3.1 fp

2/9+(1/9+1/9)=4/9

Numerator 3.2 fp

107/24-(9/14+139/56)=4/3

1/4-1/5-4/5=-3/4

-1/8-3/4=-7/8

1/4+1/4+1/8=5/8

4/9-(2/9-4/9)=2/3

5/2÷25/9=9/10

7/11×121/7=11/1

1/5×5/2÷5/8=4/5

4/16=1/4

24/72=1/3

8/9÷4/3+2/3=4/3

Comparisons

-38×2 < 16÷(-2)

-6 < 55

-9 < 10

678 > -681

7-40 < -63+70

-726+210 < 848-597

100÷(-25) < -90÷30

-36×(-4) = 720÷5

1.8×5 = 45.9÷5.1

6.25×0.64 = 32.28÷8.07

34.01 < 35.79

45.147 > 39.876

900.349 < 900.361

70.62-25.85 = 26.99+17.78

Point 2.3 dp

6.675+59.134 > 89-23.199

Point 3.1 dp

0.8×80 > 75.6÷5.4

Point 3.2 dp

0.96×6.5 > 81.99÷27.33

-27.9÷0.9 < -2.5×2

63.74 > -72.77

-89.7 < 35

-41.12 < 48.26

40.8+50 > -74.7-16

92.16-19.59 > -27.67+18.04

Doted 3.1 dn

-44×1.4 < -1.4×17

Doted 3.2 dn

15×(-1.26) > 68.2÷(-1.24)

Improper 0.1 fp

2/3÷5/6 > 1/6÷5/9

Improper 0.2 fp

2/3+1/2 > 26/11-127/77

Improper 1.3 fp

25052/267 > 1679/18

Improper 2.2 fp

1/2+1/20 < 1/3+1/3

Improper 2.3 fp

2941/97+3001/97 > 903/970+57627/970

Improper 3.1 fp

1/2×2/3 < 5/8×4/5

Improper 3.2 fp

1/2÷7/12 < 48/7÷96/47

Descent 1.1 fn

-1/3 > -2/5

Descent 1.2 fn

-5/1 < 1/2

Descent 2.1 fn

-1/5+2/5 < -5/9+8/9

Equations

x+4=-6

44÷(-x)=2

-x+12=-52

x+720=0

72÷x=-12

33×x=-990

1+5÷x=0

x÷33-2=-4

-10÷(1-x)=2

44÷(x-62)=-11

Rounding

4.5≈5

51.99≈52

99.06≈99.1

17.001≈17

44.82-29.27≈15.6

60.031-59.245≈0.79

21.7÷37.3≈1

1.61×48.93≈78.8

Language Exercises

Russian Vocabulary 2.4

к нкурент

English Vocabulary 3.3

w rking

Lexicon 2.3

f shing [piscatorial]

Infinitive 1.2

unbind unbound [unbind]

Infinitive 3.1

lay [lay]

13+

Recommended for adolescents from the age of thirteen

Integer Examples

Conversant 0.4 in

-74-280+927=573

Conversant 0.5 in

-487080+435100+45605=-6375

Conversant 1.4 in

-602+442=-160

Conversant 2.4 in

747-520-474=-247

Conversant 2.5 in

232056+913665-686147=459574

Conversant 3.4 in

287-(582+82)=-377

Conversant 3.5 in

-82240+(96655-819676)=-805261

Conversant 4.4 in

(2+962)+(310-484)=790

Conversant 4.5 in

(600000+792983)-(96952+770651)=525380

60000÷600=100

361+10×21=571

-720÷360+520=518

-88÷22+480÷16=26

837+(-751-209)÷60=821

-780÷(-2×3)=130

92÷(-2)=-46

5×(-10)÷2=-25

(-20×2)÷(-4)=10

240÷(-400÷(-10))×(-30)=-180

Divisor_ENG 1.5 ip

256119÷177=1447

Decimal Examples

Partitive 0.4 dp

478.968-97.735-181.233=200

Partitive 1.4 dp

427.596-254.6=172.996

Partitive 2.4 dp

156.042+339+414.958=910

Partitive 3.4 dp

370.145-(486.9-421.938)=305.183

Split 0.3 dn

12+46=58

Split 0.4 dn

-261.085+(-244.625+975.71)=470

Split 1.3 dn

2.59+68=70.59

Split 1.4 dn

-450-152.449=-602.449

Split 2.3 dn

-73.8-66+93.62=-46.18

Split 2.4 dn

114-131.583-424.417=-442

Split 3.3 dn

-1.78-(12.26+28.06)=-42.1

Split 3.4 dn

46-(163.428+26.744)=-144.172

30÷25=1.2

7.616÷0.112=68

1.14÷4.56=0.25

4.86÷5.625=0.864

1.28×3.125=4

10.368÷0.648=16

5.76÷1.152=5

2.48×1.25×20=62

35.64÷88÷1.35=0.3

(1.2×0.3)÷0.02=18

95.04÷(0.384×15.625)=15.84

Definition 0.2 dp

2.16×45-15.01=82.19

Definition 1.2 dp

7.8×11.4-38.92=50

Definition 1.3 dp

39.788-4.68÷2.08=37.538

Definition 2.2 dp

0.77×15+56.25×0.16=20.55

Definition 2.3 dp

34.864+3.375×1.6-21.098=19.166

Definition 3.2 dp

(0.83+1.17)×(41.3-34.81)=12.98

Negatory 0.1 dn

-28.9+89.1÷(2.2+5.9)=-17.9

Negatory 0.2 dn

3.6×20.25-1.5×4=66.9

Negatory 1.2 dn

-33.26-52.92÷18.9=-36.06

Negatory 1.3 dn

77-43.2÷3=62.6

Negatory 2.2 dn

-0.98÷2.45-15.68÷98=-0.56

Negatory 2.3 dn

8.779+9.828÷27+77.51=86.653

Negatory 3.1 dn

0.5×(-0.5-0.3)×50=-20

Negatory 3.2 dn

-98.86+(99.73-94.53)×0.8=-94.7

Residual_ENG 1.2 dp

54÷50=1.08

Divisional_ENG 1.3 dp

0.028÷0.032=0.875

Fraction Examples

Numerator 0.3 fp

377/20+353/180=1873/90

Numerator 1.3 fp

1/42+15943/371=13673/318

Numerator 2.3 fp

5584/143-3361/143+6869/616=1495/56

Numerator 3.3 fp

707/13+(528/13-5/16)=1515/16

Denominator 0.2 fn

1/6-13/6=-2/1

Denominator 1.2 fn

-5/42-19/42=-4/7

Denominator 1.3 fn

-2551/498+134/3=19693/498

Denominator 2.2 fn

40/37-79/13-51/13=-330/37

Denominator 3.2 fn

74/9+(-51/11-133/33)=-4/9

3/4÷9/4=1/3

44/3÷22/13÷13/2=4/3

350/39÷224/13=25/48

21/34×32/21×317/8=634/17

Fragment 2.3 fp

12/13×39/2÷180/7=7/10

Fragment 3.1 fp

(3/2÷1/6)÷27/10=10/3

Fragment 3.2 fp

(8/9×27/8)÷99/23=23/33

Reduction 1.3 fp

17252/247=908/13

Limited 0.1 fp

(7/2+7/2)×4/7=4/1

Limited 1.2 fp

55/12+12/17÷36/85=25/4

2/5×(2/5+38/5)=16/5

-4/3+10/3÷5/9=14/3

39/7+16/5÷7/4=37/5

-1/2×132/13-116/13=-14/1

Complete 2.1 fn

-(27/5-17/5)×5/2=-5/1

Comparisons

Ceil 0.4 in

501900 > -501900

Ceil 1.4 in

90321 < 467382

Ceil 2.4 in

928979-89750 > 126176+625896

Ceil 3.4 in

260×(-30) > 44684÷(-4)

Point 0.3 dp

46.453-6.383 > 48.731-8.667

Point 0.4 dp

915.258-396.744 = 736.449-217.935

Point 2.4 dp

1000-957.41 < 351.661-21.661

2.5×3.456 < 2×8.4

16×8.4 > 94.73÷2.5

90.929 > -81.469

10.084 < 12.192

2.314 > -834.886

0.666+6.49 < 22.547-4.547

Doted 2.4 dn

78.618+44.684 < -3.756+583.756

Doted 3.3 dn

-44×(-1.1) > -2.5×34.56

Improper 0.3 fp

1394/635 < 2666/85

Improper 3.3 fp

298/3÷1192/123 > 3/10×5/2

-1/2×8/9 < 1/2÷9/10

67/72 > -3/5

213/254 < 9715/381

2/1+8/15 < 8/5+223/95

Descent 3.1 fn

-1/3÷5/9 < 1/2×(-3/5)

Descent 3.2 fn

-27/5×(-5/54) < -1/2÷(-1/2)

Equations

x×44+770=110

-480+780÷x=-450

-(-x-855)×40=-880

x+y=8

Rounding

Rounding 0.3 dp

2.193×30.124≈66.06

Rounding 3.3 dp

27.479×2.6≈71.45

Language Exercises

Russian Vocabulary 1.5

бук нист

Russian Vocabulary 3.4

на зусть

English Vocabulary 1.4

ori inally

English Vocabulary 2.4

c iling

Lexicon 1.4

caref l [anxious]

Infinitive 2.2

swell [swell]

14+

Recommended for adolescents from the age of fourteen

Integer Examples

Intellect 0.3 in

(900-3121)×(2100-2118)=39978

Intellect 1.3 in

110÷55-5911=-5909

Intellect 2.3 in

7189-432÷24×3996=-64739

Intellect 3.3 in

2077-8464÷(-250-118)=2100

(-5×45)÷3=-75

79×20=1580

62×(-4)×(-40)=9920

(-5×(-50))÷(-2)=-125

16÷(-4)×(-40×(-15))=-2400

Decimal Examples

9÷30=0.3

(9.6×0.005)÷12=0.004

6.72×1.25=8.4

7.176÷2.4=2.99

8×0.001=0.008

38.8×24.25÷0.97=970

137.214÷(107.1÷85)=108.9

Definition 0.3 dp

37.849-14.168÷5.5+54.931=90.204

Definition 0.4 dp

77.76÷0.6-111.589=18.011

Definition 1.4 dp

472.262-2.926÷4.18=471.562

Definition 2.4 dp

0.8×1.125+45×0.004=1.08

Definition 3.3 dp

90.45+0.036÷(12.44-12.08)=90.55

Definition 3.4 dp

30×(4.894+5.312)×1.6=489.888

Negatory 0.3 dn

-35+(68.311-56.075)÷4=-31.941

Negatory 0.4 dn

-550.135+500÷15.625=-518.135

Negatory 1.4 dn

-126÷0.672-313.5=-501

Negatory 2.4 dn

9.375×0.096-20÷12.5=-0.7

Negatory 3.3 dn

(-9.304-1.1)÷(-20-31)=0.204

Negatory 3.4 dn

(-154.113-1.839)÷(6.698+27.502)=-4.56

Residual_ENG 1.3 dp

51÷20=2.55

Fraction Examples

Denominator 0.3 fn

-173/9-448/9=-69/1

Denominator 2.3 fn

-108/7-22094/285+1782/19=88/105

Denominator 3.3 fn

-1/4-(1/12+1/15)=-2/5

Fragment 0.3 fp

1/2×9/2÷1/16=36/1

Fragment 3.3 fp

(1624/57÷1218/19)÷4/81=9/1

Limited 0.2 fp

(59/2-293/10)÷14/5=1/14

Limited 1.3 fp

12/299+2/9÷13/18=8/23

Limited 2.2 fp

(88/3-1/3)×14/29=14/1

Complete 0.2 fn

175/87×(-79/10-19/2)=-35/1

Complete 1.3 fn

-1196/21+14/33÷98/85=-4357/77

Complete 2.2 fn

-125/32÷(1/11+4/77)=-875/32

Comparisons

Doted 0.4 dn

-608.316+220 > -290-98.323

Doted 3.4 dn

43.2×(-13) < 19.5×28.8

Descent 0.3 fn

160/349+6/349 > 50/1-645/13

Descent 2.3 fn

4577/219+5983/219 > 1333/33-412/33

Descent 3.3 fn

25383/620÷8461/184 < -6071/110÷(-467/11)

Equations

8x²=800

5x²=0

6x²-30x=0

2x²-2x-4=0

10y-7x=20

y+x=76

10x×y=200

7y+7x=84

y×15x=-300

y-x=1

216x÷9y=-15

10x-2y=-120

Language Exercises

Russian Vocabulary 2.5

и нутри

English Vocabulary 1.5

fo ndation

English Vocabulary 2.5

pro essional

English Vocabulary 3.4

appre iate

Lexicon 1.5

ent usiasm [delight]

Lexicon 2.4

unempl yed [unoccupied]

Infinitive 1.3

underspend underspent [underspend]

Infinitive 3.2

sit [sit]

15+

Recommended for adolescents from the age of fifteen

Integer Examples

-15232÷(-16)=952

-9776÷13=-752

380÷20×970=18430

-15×(-160×(-25))=-60000

Logics 4.4 in

-693120÷(2888÷(-38))÷16=570

Fraction Examples

Limited 0.3 fp

(50/3+203/24)×40/67=15/1

Limited 2.3 fp

5309/82×(14/19-23/57)=5309/246

Complete 0.3 fn

(1/2-9/2)×79/854=-158/427

Complete 2.3 fn

-17460/289÷(494/5-1694/17)=2425/34

Equations

90x²=0

70x²=85750

-61x²-1220x=0

-x²+29x+342=0

50y-x=3914

x-y=39

12y×x=72000

30x+30y=2490

68640x÷77y=624

-x-y=6

-2160x÷72y=-60

47x+20y=-1230

Language Exercises

Russian Vocabulary 3.5

надв е

English Vocabulary 3.5

contin ous

Lexicon 2.5

transpo tation [conveyance]

Infinitive 2.3

sight-read [sight-read]

16+

Recommended for adolescents from the age of fifteen

Equations

180x²=648000

29x²=3158100

240x²-26160x=0

-x²+121x+1452=0

89y+72x=87280

38x×2y=2708640

105x-600y=900

18480y÷88x=525

-x+y=592

-6x×3y=92160

400y+130x=144200

Language Exercises

Infinitive 3.3

refit [refit]

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