2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6. 10+ 12÷3+20=34
7.(80÷20+80)÷4=2 1
8.70+( 100- 10×5)= 120
9.360÷40+ 10= 19
10.40×20-200= 600
1 1.(80-25)*2= 1 10
12.70+45= 1 15
13.90×2÷3= 60
14. 16×6÷3= 32
15.300×6÷9= 200
16.540÷9×7=420
17.30×20÷ 15= 20
18.400÷4×7= 700
19.(350-80)÷9= 30
20. 160+70+50=280
2 1. 18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3= 100
25.4 1+ 18÷2= 50
26.75- 1 1×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25× 16÷4= 100
30. 120×25÷5= 600
3 1.36× 1 1÷3= 132
32. 1025÷25×8=328
33.336+70-6= 400
34.25×9×4= 900
35.200-33×3= 10 1
36.3020- 10 10=20 10
37. 12×50+ 10= 6 10
38.25×8+ 199= 399
39.23× 1 1- 13= 240
40. 125÷25-5=0
4 1.4200-2200+200=2200
42.220+80- 150= 150
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4