Question

口算5×0.9= 0.42÷7= 0.4÷8= 3.9×0= 86÷0.1= 30×0.05= 20+12.3= 54÷

Answer 1

5×0.9=4.5 0.42÷7=0.06 0.4÷8=0.05 3.9×0=0

86÷0.1=860 30×0.05=1.5 20+12.3=32.3 54÷0.9=60

6.3÷0.7=9 9.54+0.46=10 10-0.1=9.9 1.5-0.01=1.49

0.8×6=4.8 3.8×0.5=1.9 45÷0.45=100 1.3+0.7=2

1

5 +

2

5 =

3

5

1

9 +

5

9 =

2

3 1-

3

26 =

23

26

1

3 -

1

4 =

1

12