Question

直接写出得数．4× 7 16 = 4 5 × 3 4 = 0× 20 7 = 1 2 + 1 2 = 7 9 × 2 2

Answer 1

4×

7

16 =

7

4

4

5 ×

3

4 =

3

5 0×

20

7 =0

1

2 +

1

2 =1

7

9 ×

2

21 =

2

27

7

8 -

3

4 =

1

8

2

9 ×

6

5 =

4

15

5

8 ×6=

15

4

1

3 -

1

4 =

1

12 ．

1

2 ×

1

3 ×

1

5 =

1

30