Mathematical multiplication, division and oral calculation problems in the fifth grade of primary school

17×40=680, 100-63=37, 3.2+ 1.68=4.88, 2.8×0.4= 1. 12

14-7.4=6.6, 1.92÷0.04=48, 0.32×500= 160, 0.65+4.35= 5

10-5.4=4.6, 4÷20=0.2, 3.5×200=700, 1.5-0.06= 1.44

0.75÷ 15=0.05, 0.4×0.8=0.32, 4×0.25= 1, 0.36+ 1.54=2

1.0 1×99=99.99, 420÷35= 12, 25× 12=300, 135÷0.5=270

0.5 1÷ 17=0.03, 32.8+ 19=5 1.8, 5.2÷ 1.3=4, 1.6×0.4= 0.64

4.9×0.7=3.43, 1÷5=0.2, 6÷ 12=0.5, 0.87-0.49=0.38

2.8×0.4= 1. 12

14-7.4=6.6,

1.92÷0.04=48,

0.32×500= 160,

0.65+4.35= 5

10-5.4=4.6,

4÷20=0.2,

3.5×200=700,

1.5-0.06= 1.44

0.75÷ 15=0.05,

0.4×0.8=0.32,

4×0.25= 1,

0.36+ 1.54=2

1.0 1×99=99.99,

420÷35= 12,

25× 12=300,

135÷0.5=270