Question

口算． 3 14 ×7=	3 7 × 3 7 =	3 10 ×6=	9 16 × 8 3 =
1 8 ×3× 8 9 =	1 4 + 3 4 × 1 3 =	1 2 3 × 3 5 =	7 15 ×10=

Answer 1

①

3

14

×7=

3

2

；②

3

7

×

3

7

=

9

49

；③

3

10

×6=

9

5

； ④

9

16

×

8

3

=

3

2

；
⑤

1

8

×3×

8

9

=

1

3

，⑥

1

4

+

3

4

×

1

3

=

1

2

； ⑦1

2

3

×

3

5

=1； ⑧

7

15

×10=

14

3

；