The first volume of the fifth grade elementary school mathematics oral arithmetic training 30 pages 3 1 page reference answer.

7.8× 10= 0.6× 100= 3.7 1× 10= 4.5× 1000=

0.92× 100= 6÷ 12= 0.87-0.49=

5.2× 10= 0.28× 1000= 6. 12× 10= 0.479× 100=

17.6× 1000= 5÷ 100= 2 1.3÷ 10=

14. 17÷ 100= 9.2÷ 10= 7. 13÷ 10= 1÷ 100=

0.43÷ 10= 278.6÷ 1000= 53.4÷ 100=

38.2÷ 100= 2.33÷ 10= 4.56÷ 100= 9.02÷ 10=

70.77÷ 100= 356.8÷ 1000= 3.2×3=

1.4×0.5= 0.08×6= 1.5×0.3= 0.7 1×2=

0.25×4= 1.25×8= 4.3×2=

1.2×0.4= 0.6×0.9= 3.4×0.3=

5×0.6= 4.5×2= 0.03×0.5= 1.6×0.3=

0.23×3= 5. 1×2= 9×0.3= 7. 1×3=

1.5×6= 0.9×0.4× 10= 0.68×8× 1.25=

7. 1×0.25×4= 16.4×2.9+ 16.4×7. 1=

3.2×2.8+3.2×7.2= 1/6 + 1/2 - 1/6 = 7.5-(2.5+3.8)=

7.2÷3= 8.4÷4= 0.65÷5= 0.93÷3=

2.7÷9= 3.8÷2= 5.4÷0.8= 4.6÷2=

1.8÷0.3= 4.2÷7= 9.6÷0.6= 6.4÷3.2=

1 1÷0. 1 1= 10÷2.5= 14÷0.2=

0.3 1÷3= 10.5÷5= 14.7÷0.7= 20÷0.5=

9.6÷ 1.2= 3.44÷2= 65÷0.3=

9.9÷ 1 1= 2.8÷2= 0.96÷3= 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= 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=