42× 20=

12 × 50=

1500-700=

5900-4000=

76 + 27=

840 ÷ 2=

770 ÷ 7=

30× 20=

40× 50=

9900+ 100=

700 ÷ 7=

240× 10=

390 ÷ 3=

60× 50=

7 1 - 22=

50 × 90=

14 × 20=

600+ 1200=

840 ÷ 4=

36 + 49=

10 × 60=

800 × 50=

180 ÷ 3=

120 ÷ 6 =

7500+500=

460+ 140=

33 × 20 =

990 ÷ 3 =

440 ÷ 4 =

83-57 =

860 ÷ 2=

1 100-600=

6900- 1900=

720 ÷ 8=

0÷999=

7 × 800=

23 × 30=

290 - 190=

690 ÷ 3=

690÷3×6=

17×40=

100-63=

3.2+ 1.68=

2.8×0.4=

14-7.4=

1.92÷0.04=

0.32×500=

0.65+4.35=

10-5.4=

4÷20=

3.5×200=

1.5-0.06=

0.75÷ 15=

0.4×0.8=

4×0.25=

0.36+ 1.54=

1.0 1×99=

420÷35=

25× 12=

135÷0.5=

3/4 + 1/4 =

2 + 4/9 =

3 - 2/3 =

3/4 - 1/2=

1/6 + 1/2 - 1/6 =

7.5-(2.5+3.8)=

7/8 + 3/8 =

3/ 10 + 1/5 =

4/5 - 7/ 10 =

2 - 1/6 - 1/3 =

0.5 1÷ 17=

32.8+ 19=

5.2÷ 1.3=

1.6×0.4=

4.9×0.7=

1÷5=

6÷ 12=

0.87-0.49=

24/3*9=

15*3-20=

12* 1 1+ 13=

25*4+36=

36+25- 14=

2*36+4=

12/4*35=

(23-8)*3=

14/2+2 1/3=

42/ 14+54/9=

55/ 1 1*20=

36/9* 12=

16/4* 19=

16-45/ 15+6=

70÷7=

20× 10=

320÷5≈

54×70≈

25 1÷4≈

6300÷7=

13 1÷4≈

50×8=

85-45=

0÷5=

280÷4=

60×40=

840-30=

2700÷9=

99×3 1≈

3. 1+2.7=

13 1÷4≈

50×8=

7.8- 1.8=

350÷5=

630÷9=

13 1÷6≈

10×80=

65-56=

43 1÷6≈

15×6=

4.8-0.4=

6. 1+0.7=

9 1× 18≈

257÷4≈

44÷4=

20×40=

2 10-30=

34+28 =

63- 63÷9=

120÷3×2=

800÷8=

40×70=

300÷4≈

59×72≈

25 1÷5≈

630÷7=

13 1÷6≈

0× 108=

45- 18=

0÷ 15=

120÷4=

30×40=

640-70=

1800÷9=

99×39≈

5. 1+2.6=

4 1 1÷4≈

15×20=

7.3- 1.8=

250÷5=

6300÷9=

43 1÷6≈

20×80=

78-56=

49 1÷8≈

14×6=

4.8-4.4=

6. 1+4.7=

9 1× 19≈

367÷4≈

55÷5=

10×40=

2 1 1-30=

134+28 =

50×40- 100=

12×20÷30=