小学五年级十进制乘除口算1000题。

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

1.01×99=99.99, 420÷35=12, 25×12=300, 135÷0.5=270

3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4

1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4