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

5+4=9

Beginner 2.1 ip

6-4=2

Beginner 3.1 ip

10-5=5

Step-by-step Tasks

4+1=5

2+3=5

1+4=5

1+0=1

2+1=3

4-1=3

2-1=1

7-1=6

4-1=3

2-2=0

3-3=0

Recommended for children from six years

Integer Examples

9+7=16

16-10=6

3+15=18

10-2-5=3

Step-by-step Tasks

8+2=10

3+9=12

3+7=10

4+1=5

4+6=10

5+9=14

6+2=8

6+5=11

3+9=12

7+1=8

9+1=10

7+1=8

6+8=14

9+7=16

6-2=4

10+6=16

6+8=14

5-4=1

6-5=1

10-3=7

11-1=10

14-2=12

13-6=7

16-7=9

7-2=5

15-8=7

11-8=3

18-9=9

15-0=15

14-10=4

Recommended for children from seven years

Integer Examples

10+(9-9)=10

30+57=87

75-21=54

65-20=45

6+8-2=12

1+(9-7)=3

Step-by-step Tasks

10+3=13

3+2=5

6+14=20

22+4=26

13+7=20

4+11=15

10+15=25

19+19=38

0+25=25

14+16=30

5+27=32

15-8=7

19-11=8

12-2=10

19-13=6

17-4=13

12-5=7

7-6=1

11-7=4

16-6=10

1×5=5

1×2=2

1×3=3

5÷1=5

Comparisons

Natural 1.1 ip

2 > 0

Natural 2.1 ip

2+8 > 2+3

Language Exercises

Russian Vocabulary 1.1

мес ц

Recommended for children from eight years

Integer Examples

20-2=18

126+347=473

705-207=498

256+16=272

38+62-13=87

1+(3+13)=17

4×10=40

78÷39=2

30÷10=3

68+11=79

91-45=46

16+80=96

Step-by-step Tasks

12+8=20

27-22=5

8+3=11

19+12=31

10+30=40

27+23=50

7+0+10=17

27-8=19

24-14=10

19-9=10

14-11=3

37-17=20

50-10=40

3×1=3

2×1=2

4×10=40

2×0=0

1×5=5

7×5=35

10×2=20

6×2=12

8×6=48

5×7=35

4×3=12

5×4=20

8×4=32

1×5=5

9×6=54

6×3=18

5×8=40

3×10=30

16÷2=8

12÷2=6

6÷3=2

2÷1=2

8÷4=2

3÷1=3

45÷5=9

0÷4=0

50÷5=10

42÷6=7

6÷6=1

56÷7=8

54÷6=9

15÷3=5

64÷8=8

24÷8=3

45÷9=5

72÷8=9

30÷3=10

100÷10=10

Comparisons

5×2 > 9÷9

68 > 7

61-11 > 23+12

5÷5 < 10÷2

Equations

Linear 1.1 ip

4+x=6

Linear 2.1 ip

x×2=10

Language Exercises

Russian Vocabulary 1.2

ллея

Russian Vocabulary 2.1

снова

Russian Vocabulary 3.1

наш л

English Vocabulary 1.1

t xt

English Vocabulary 2.1

lmost

Lexicon 1.1

e t [ingest]

Lexicon 2.1

h r [pronoun]

Recommended for children from nine years

Integer Examples

12+(50+36)=98

220+448-18=650

96-(13+40)=43

35×2=70

37×19=703

390÷13=30

810÷3=270

28÷4÷7=1

27÷(3×3)=3

4÷2×(10×4)=80

50÷5=10

8129+385=8514

7149-4065=3084

9000+1000=10000

14×7=98

92÷4=23

68÷34+68=70

58+45÷3-43=30

22÷2=11

48÷5=9(3)

Step-by-step Tasks

12×2=24

4×11=44

3×11=33

3×15=45

16×4=64

15×5=75

12×1=12

20×5=100

5×16=80

11×6=66

14×7=98

6×15=90

19×8=152

16×5=80

11×9=99

24×5=120

10×16=160

20×8=160

19×8=152

14÷2=7

0÷11=0

24÷3=8

48÷3=16

32÷4=8

40÷5=8

24÷6=4

21÷3=7

0÷20=0

60÷6=10

119÷7=17

56÷7=8

32÷8=4

60÷10=6

90÷9=10

28÷7=4

490÷10=49

72÷8=9

40÷5=8

Comparisons

20 > 18

403 > 234

53+52 < 911-217

35÷7 < 80÷5

Equations

Linear 1.2 ip

x+53=77

Linear 2.2 ip

3×x=72

Linear 3.1 ip

2+x×7=9

Language Exercises

Russian Vocabulary 1.3

ант гуманный

Russian Vocabulary 2.2

кла с

Russian Vocabulary 3.2

аквар ум

English Vocabulary 3.1

z ro

10+

Recommended for children from ten years

Integer Examples

0+111=111

71167+78833=150000

688969-34501=654468

949282-152711=796571

958-(34+243)=681

892÷4=223

100×70=7000

2826÷18=157

4200÷2=2100

30×20÷24=25

1000÷(400÷40)=100

800÷2÷(5×8)=10

26÷4=6(2)

347811+402227=750038

820119-816514=3605

497867-443120=54747

7925×4=31700

1900×26=49400

938÷2=469

(41-37)×(10+5)=60

36×10-294=66

724÷2-40÷20=360

46+36÷(4-2)=64

532÷2=266

35÷5=7

Comparisons

Natural 0.3 ip

2×24 < 4×19

Natural 1.4 ip

400000 > 399995

Natural 2.4 ip

896896+1845 > 248368+47602

Natural 3.3 ip

2×5 < 8×9

Equations

4+x=9

459+x=569

x×200=1000

92-46÷x=90

(x-1)×5=10

Rounding

Round 1.1 ip

447≈45

Round 1.2 ip

9178≈92

Round 2.1 ip

762+223≈99

Language Exercises

Russian Vocabulary 2.3

акац я

English Vocabulary 1.2

th rty

English Vocabulary 2.2

b nd

Lexicon 1.2

s xth [count]

Lexicon 2.2

l ss [privation]

Infinitive 1.1

outride outrode [outride]

11+

Recommended for children from the age of eleven

Integer Examples

Beginner 0.5 ip

40000+955560=995560

Beginner 4.5 ip

863536-538372+354836=680000

Beginner 5.5 ip

581887-(122155+283170)=176562

Conversant 1.1 in

4-3=1

Conversant 1.5 in

-356865+968629=611764

8+0-9=-1

1520÷19=80

7×19×20=2660

31×(60×2)=3720

6336÷4÷(66÷6)=144

916÷33=27(25)

8648×270=2334960

9616÷16=601

780÷4-95=100

(1791-1341)÷(20+10)=15

Numeracy 1.3 ip

7000÷350+7117=7137

Numeracy 2.3 ip

9357-1200÷600×1219=6919

Numeracy 3.2 ip

(46+299)÷(21+2)=15

Numeracy 3.3 ip

(8915-4055)÷(84+78)=30

Divisor_ENG 1.3 ip

8897÷31=287

Remainder_ENG 1.3 ip

472÷93=5(7)

Decimal Examples

2.4-1.4=1

86.2-25.4=60.8

1.6+8.4=10

94.7-8.3=86.4

4.6-2.4+4.8=7

58.5+95.5-75.6=78.4

2.2+(2+1.3)=5.5

84-(7.9+52)=24.1

19.8÷1.8=11

6.8×8=54.4

16.4÷0.5=32.8

4×8.8=35.2

Divisional_ENG 1.1 dp

23.4÷0.4=58.5

Fraction Examples

Numerator 1.1 fp

1/5-1/10=1/10

Comparisons

Natural 0.4 ip

703962-603037 > 746779-645871

729615÷127 < 288×75

7 > -2

-8 < 6

7-10 < -2-0

-6÷3 < 4×2

78.7 > 29.7

85-17.8 > 58.6-56.1

3/5 < 1/1

81/23 > 38/69

9/10-1/10 > 4/5-2/5

Equations

4×x+47=47

741÷x=39

28×x+139=979

2×(x+16)=52

714÷(x+1)=51

10+x=10

-x÷3=2

Rounding

28.9≈29

2.8+54.2≈57

111+141≈25

304+2279≈26

856596÷247≈3

244144≈244

9109+131≈92

407998+154241≈562

988÷13≈8

9646÷2≈48

933100÷100≈9

Language Exercises

Russian Vocabulary 1.4

фильм тека

Russian Vocabulary 3.3

н верное

English Vocabulary 1.3

cr am

English Vocabulary 2.3

e am

English Vocabulary 3.2

hu e

Lexicon 1.3

chick n [hen]

Infinitive 2.1

see [see]

12+

Recommended for children from the age of twelve

Integer Examples

-7-(-4-2)=-1

-20+5=-15

(13+80)+(70-100)=63

1+9=10

-56-21=-77

-20+9+1=-10

-4-94-1=-99

4-(6+1)=-3

-11-(-7-14)=10

33+(-37+1)=-3

(10+5)+(1-9)=7

-(16+2)-(4-2)=-20

-(7+20)-(2-68)=39

505×408=206040

955×464=443120

53760÷1792=30

450000÷150=3000

222000÷5÷6=7400

(500÷2)×40=10000

417×32×(66÷22)=40032

71200×1008=71769600

95559÷53=1803

10+20÷10=12

8-32÷4=0

-9-7×3-43=-73

65+21÷(26-5)=66

-50÷5=-10

-50÷5=-10

5×2÷10=1

10×(-2×(-3))=60

-4×(2×6)÷3=-16

90000÷36=2500

Decimal Examples

Partitive 0.3 dp

49.36-38.41-8.02=2.93

26.24-25.89=0.35

77-55.38+39.66=61.28

8.06+(27.11-0)=35.17

-3.9-(0.8+4.8)=-9.5

-2.3-53.5-43.9=-99.7

1.4+3.9=5.3

-79.3+7.8=-71.5

-4+2.1-2.4=-4.3

-54.8-5.1+18=-41.9

0.6+(-6.1-2.5)=-8

18.8-(68.8-91.3)=41.3

47÷5=9.4

2.16÷2=1.08

(36÷22.5)÷2=0.8

26×0.37=9.62

0.96÷0.8=1.2

6.84÷7.2=0.95

10.5×6×0.4=25.2

(48.7÷97.4)×10.4=5.2

0.5×(100-98)×1.6=1.6

30.4+3.6÷9=30.8

6×0.5+3.6÷1.2=6

62.6÷(4.8-2.8)÷62.6=0.5

Negatory 1.1 dn

25.1+7.5×3.6=52.1

Negatory 2.1 dn

-9.8×2.5-5.7÷3.8=-26

Residual_ENG 1.1 dp

74÷5=14.8

Divisional_ENG 1.2 dp

12.32÷35.2=0.35

Fraction Examples

Numerator 0.1 fp

1/4-1/4+1/7=1/7

Numerator 0.2 fp

7/2+(135/34-59/17)=4/1

13/33+379/99=38/9

7/9-4/9+1/2=5/6

3/11-7/88+9/88=13/44

1/5+(4/5-2/7)=5/7

7/24+(11/24+1/4)=1/1

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

1/10+4/5=9/10

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

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

9/2÷21/4=6/7

2/5÷1/5=2/1

3/5÷1/2÷3/2=4/5

4/16=1/4

1554/77=222/11

13/2-1/3÷2/9=5/1

Comparisons

30+23 > -1-8

873 > -188

-9 < 10

-520 < 700

32-3 = 20+9

24+386 < 138+529

2×6 > 84÷12

-36×(-4) = 720÷5

22.8÷6 = 0.5×7.6

31.69+5.5 > 63-25.82

79.92 > 79.9

42.354 < 42.371

685.07 > 400

96.8-25.14 > 66.5-7.5

Point 2.3 dp

87.041-0.599 > 0.046+0.028

98.4÷8.2 < 37÷2

85÷17 < 90.09÷6.93

0.8×(-37.5) = -90÷3

72.72÷(-2.02) > -39×1.38

21.5 > -92

44 > -43.4

-91+96.7 > -10.7-9.2

-33.13-16.15 < -17.65-31.62

Doted 3.1 dn

6.4×13.5 > 6×12.8

Doted 3.2 dn

-76.32÷(-1.44) > 3.2×2.8

1/2×2/7 < 1/2÷5/8

69/11 < 46/5

2616/43 > 411/11

17/2-81/10 < 11/2-23/6

Improper 2.3 fp

1129/13-596/13 > 1/8+7/8

Improper 3.1 fp

4/5×5/6 = 1/3÷1/2

Improper 3.2 fp

1/2×28/3 > 7/11÷14/99

Descent 1.1 fn

9/10 > 5/6

Descent 1.2 fn

-17/2 > -9/1

Descent 2.1 fn

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

Equations

3×(-x-8)=0

-x÷12-3=0

x+74=-11

114-x=-4

-58÷(-x)=2

-760÷x=76

-3-x÷5=-5

-40+x×2=92

(-x+6)×3=-3

2×(71+x)=-30

Rounding

8.9+70.8≈80

45.56-11.54≈34

61.35≈61.4

9.106≈9.11

45.64+15.81≈61.5

93.215-14.163≈79.05

54.7÷24≈2

69.53×1.12≈77.9

Language Exercises

Russian Vocabulary 2.4

эт кет

English Vocabulary 3.3

se ing

Lexicon 2.3

al rming [anxious]

Infinitive 1.2

overspill overspilt [overspill]

Infinitive 3.1

dream [dream]

13+

Recommended for adolescents from the age of thirteen

Integer Examples

Conversant 0.4 in

-(2+338)+(202-832)=-970

Conversant 0.5 in

(450000+278390)-(363884-311853)=676359

Conversant 1.4 in

-732+20=-712

Conversant 2.4 in

-150-180-404=-734

Conversant 2.5 in

-325759+772245-446486=0

Conversant 3.4 in

15-(-506-450)=971

Conversant 3.5 in

866806+(-785762+337452)=418496

Conversant 4.4 in

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

Conversant 4.5 in

(153170+29689)+(606039-878898)=-90000

6938712÷396=17522

-423-21÷3×81=-990

760÷40-470=-451

16-39×12÷18=-10

(-30-11)×(-8-7)=615

-17×25=-425

-36÷(-4)=9

-2×5×5=-50

36÷(-12÷2)=-6

10×10÷(-2×(-5))=10

4834050÷195=24790

Decimal Examples

Partitive 0.4 dp

575.157-111.661+378.05=841.546

Partitive 1.4 dp

210-92=118

Partitive 2.4 dp

521.6-504.451+762.851=780

Partitive 3.4 dp

237.038+(265.417+175.545)=678

10-77.38+79.44=12.06

140+90=230

29.75+40.32=70.07

-10.495-147.571=-158.066

Split 2.3 dn

-35.09+20.59-79.31=-93.81

Split 2.4 dn

229.33+405.892-147.64=487.582

Split 3.3 dn

20+(79.73-97.84)=1.89

Split 3.4 dn

-61+(-301.573-215.315)=-577.888

16÷40=0.4

0.072÷0.1=0.72

(3.2÷5)÷2.56=0.25

31.68÷5.5=5.76

0.736×20=14.72

61.425÷39=1.575

79.596÷4.752=16.75

0.8×0.75÷30=0.02

3.84×0.75×33.6=96.768

Denary 5.2 dp

4.32÷(0.72×60)=0.1

Denary 5.3 dp

(35.858÷17.929)×0.002=0.004

Definition 0.2 dp

36.87+0.2÷(80.88-80.8)=39.37

Definition 1.2 dp

61.76+3.2×3.2=72

Definition 1.3 dp

1.445÷10.625+61.473=61.609

Definition 2.2 dp

85.2+8.4÷30÷28=85.21

Definition 2.3 dp

19.344+5.76÷48+25.693=45.157

Definition 3.2 dp

2.1÷(63.11-52.61)×33.6=6.72

Negatory 0.1 dn

94.3+2÷0.8-77.3=19.5

Negatory 0.2 dn

25.37+1.8÷1.25-95.81=-69

Negatory 1.2 dn

-41.86÷1.82+25.47=2.47

Negatory 1.3 dn

2.25×18.88+9.439=51.919

Negatory 2.2 dn

8.07-12×6.25-3.69=-70.62

Negatory 2.3 dn

-15×1.76+2.16÷0.025=60

Negatory 3.1 dn

-33.9+(2.4+10.6)÷2.5=-28.7

Negatory 3.2 dn

4.62-(79.8-94.8)×0.32=9.42

Residual_ENG 1.2 dp

11÷20=0.55

Divisional_ENG 1.3 dp

3.96÷5=0.792

Fraction Examples

Numerator 0.3 fp

18/11+37/11+8054/491=10509/491

Numerator 1.3 fp

74/7-29/63=91/9

Numerator 2.3 fp

5211/271-5106/271+8025/271=30/1

Numerator 3.3 fp

85/19+(466/19-11736/805)=11609/805

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

1/2+7/10=6/5

-1022/23+87/2=-43/46

-21/5+1/13+90/13=14/5

Denominator 3.2 fn

36/5+(-151/30+79/30)=24/5

Fragment 0.1 fp

4/3×3/8×9/2=9/4

Fragment 0.2 fp

1855/43×(2/3÷5/3)=742/43

1/5×408/5=408/25

62/7÷186/13÷1/7=13/3

1/2×52/29×3/26=3/29

13/9÷(8/3÷16/3)=26/9

(2/3÷19/3)×95/41=10/41

Reduction 1.3 fp

2750/6650=55/133

Limited 0.1 fp

35/4÷(34/5-43/10)=7/2

Limited 1.2 fp

82/3+138/5÷207/40=98/3

2/5×(2/5+38/5)=16/5

15/4÷(27/4+3/4)=1/2

-1/2×17/5+17/2=34/5

1037/35+3/4×308/15=1576/35

Complete 2.1 fn

-14/3×(-4/5-6/5)=28/3

Comparisons

Ceil 0.4 in

990537-17775 > 2600+3199

Ceil 1.4 in

-775923 > -933776

Ceil 2.4 in

766099-218093 > -843637+145103

Ceil 3.4 in

-2×315172 < -793184÷2

Point 0.3 dp

54.048÷3.378 < 12×3.08

Point 0.4 dp

3.096×20 > 896.382÷18

Point 2.4 dp

206+587.489 < 972.414-40.879

Point 3.3 dp

34.986÷4.998 < 19.272÷1.606

Point 3.4 dp

73.569÷0.822 > 151.438÷2.8

Doted 0.3 dn

31.482+33.017 > -55.968+57.937

Doted 1.3 dn

-96.706 < 88

Doted 1.4 dn

-747.155 = -747.155

Doted 2.3 dn

-15.399-17.51 > 10-89.552

Doted 2.4 dn

912.177-165.665 > -198.215-296.362

Doted 3.3 dn

-12.75×(-7.84) > 84.424÷(-1.384)

Improper 0.3 fp

544/891+55534/891 > 725/18-2777/126

Improper 3.3 fp

11/47÷11/842 > 201/235÷134/155

-8/9 < 3/4

67/72 > -3/5

21517/250 > -6359/75

-73/19+352/57 > -22/27-16/9

Descent 3.1 fn

-2/3×(-1/2) > -1/2×(-2/9)

Descent 3.2 fn

-27/5×(-5/54) < -1/2÷(-1/2)

Equations

-x÷(-3)=89

-99×x-990=0

48×(x-769)=-624

y-x=1

Rounding

Rounding 0.3 dp

16.293+14.006≈30.3

Rounding 3.3 dp

12÷25.802≈0.47

Language Exercises

Russian Vocabulary 1.5

б рельеф

Russian Vocabulary 3.4

м тежный

English Vocabulary 1.4

est blish

English Vocabulary 2.4

appr ving

Lexicon 1.4

b havior [conduct]

Infinitive 2.2

overspill [overspill]

14+

Recommended for adolescents from the age of fourteen

Integer Examples

Intellect 0.3 in

(10000-4900)÷(144+60)=25

Intellect 1.3 in

-7015-1656÷24=-7084

Intellect 2.3 in

-2726-50×22×75=-85226

Intellect 3.3 in

(-2300-35200)÷(6582-6585)=12500

3168÷2÷(-4)=-396

100×25=2500

-3×(-250)÷(-50)=-15

(-3720÷5)÷(-31)=24

4×(-46÷(-2))×(-42)=-3864

Decimal Examples

55÷5=11

9÷3.75×78.02=187.248

0.5×0.18=0.09

7.176÷2.4=2.99

8×0.001=0.008

1.28×250×0.125=40

(937.476÷156.246)×8.316=49.896

Definition 0.3 dp

29.971-(50.44-50.34)×0.36=29.935

Definition 0.4 dp

5.28÷20.625+161.28÷184.32=1.131

Definition 1.4 dp

3.52×0.05+530.528=530.704

Definition 2.4 dp

0.8×1.125+45×0.004=1.08

Definition 3.3 dp

(38.552-37.202)×(10+21.2)=42.12

Definition 3.4 dp

769.975+0.72÷(933-904.2)=770

Negatory 0.3 dn

-3.36÷(-5.646-4.854)÷0.05=6.4

Negatory 0.4 dn

329-437.4÷0.6=-400

Negatory 1.4 dn

-713.784+656.64÷0.512=568.716

Negatory 2.4 dn

-133.7+19.2×2-414.7=-510

Negatory 3.3 dn

-72.163-(78.991-85.591)÷1.5=-67.763

Negatory 3.4 dn

410+826.2÷(0.877+1.248)=798.8

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

40169/448-97/3-182/3=-1495/448

Denominator 3.3 fn

-4755/71-(8996/355-10741/355)=-4406/71

Fragment 0.3 fp

27/2×1/27×2/3=1/3

Fragment 3.3 fp

(39/2÷13/33)÷153/32=176/17

Limited 0.2 fp

48/11÷8/33+582/23=996/23

Limited 1.3 fp

105/2÷315/404-181/3=7/1

Limited 2.2 fp

(275/7+145/7)×31/60=31/1

Complete 0.2 fn

1/2×26/3+103/3=116/3

Complete 1.3 fn

1/2÷5/704+9381/635=10817/127

Complete 2.2 fn

1551/32×(-2/5-18/55)=-141/4

Comparisons

Doted 0.4 dn

-263.871-336.129 < 196.831+403.169

Doted 3.4 dn

5×(-13.5) < 231.44÷(-11.572)

Descent 0.3 fn

-817/379+99/1 > -1/2-961/10

Descent 2.3 fn

-13475/698+45017/698 < -9680/349+25563/349

Descent 3.3 fn

-50/7×(-63/40) > -135/2÷405/314

Equations

4x²+8x=0

3x²=192

2x²-6x=0

x²+6x-16=0

y×15x=405

x-y=0

x×20y=800

6y-2x=40

-3y×12x=-324

y-x=-10

2x×13y=390

10x-2y=-120

Language Exercises

Russian Vocabulary 2.5

впр тык

English Vocabulary 1.5

distin uish

English Vocabulary 2.5

commun cation

English Vocabulary 3.4

g ther

Lexicon 1.5

surpri ingly [amazingly]

Lexicon 2.4

wo nded [injured]

Infinitive 1.3

shake shaken [shake]

Infinitive 3.2

awoken [awake]

15+

Recommended for adolescents from the age of fifteen

Integer Examples

Logics 0.4 in

(14400÷(-10))÷12=-120

Logics 1.4 in

106964÷(-13)=-8228

Logics 2.4 in

5640÷(-188)×150=-4500

Logics 3.4 in

(-400×10)÷50=-80

Logics 4.4 in

-932400÷(-225÷(-15))÷(-210)=296

Fraction Examples

Limited 0.3 fp

20519/819÷(2734/143+5075/429)=17/21

Limited 2.3 fp

(9/11-19/77)÷1/28=16/1

Complete 0.3 fn

-87/4×2588/957+9/11=-58/1

Complete 2.3 fn

(-17/38-1/6)×11553/140=-3851/76

Equations

28x²=2800

7x²=51772

-10x²+10x=0

4x²+48x+80=0

2x+56y=5174

x+y=609

12y×x=72000

55y+44x=6490

-x-y=79

-y-x=-10

-260x÷2y=-871

-33x-5y=-2830

Language Exercises

Russian Vocabulary 3.5

и древле

English Vocabulary 3.5

contrib tion

Lexicon 2.5

tr ditionally [typically]

Infinitive 2.3

beheld [behold]

16+

Recommended for adolescents from the age of fifteen

Equations

977x²+306778x=0

50x²=1232450

-153x²+44370x=0

3x²+288x+6045=0

8x×5y=1984000

38x×2y=2708640

132x+108y=93720

3024x÷5y=-864

-x+y=242

x×y=-672300

-17x+4y=-14350

Language Exercises

Infinitive 3.3

run [run]

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