Question

直接写出得数．28+46= 5.7+2.35= 4 7 + 3 7 = 9 10 ÷3 = 1 2 - 1 3 = 50

Answer 1

28+46=74， 5.7+2.35=8.05，

4

7 +

3

7 =1，

9

10 ÷3 =0.3，

1

2 -

1

3 =

1

6 ， 50×40=2000，

1-0.9=0.1，

5

6 ×

8

15 =

4

9 ．