问题
解答题
口算.
1÷
12×
2÷
|
答案
÷5 8
=5 12 3 2
1÷
=3 7 7 3
×2=1 8 1 4
12×
=3 8 9 2
÷8 25
=4 5 2 5
×2 11
=11 4 1 2
÷4 9
=3 5 20 27
÷4 5
=3 5 4 3
2÷
=32 3
×1 3
÷1 4
×1 3
=1 4 1 16
口算.
1÷
12×
2÷
|
÷5 8
=5 12 3 2
1÷
=3 7 7 3
×2=1 8 1 4
12×
=3 8 9 2
÷8 25
=4 5 2 5
×2 11
=11 4 1 2
÷4 9
=3 5 20 27
÷4 5
=3 5 4 3
2÷
=32 3
×1 3
÷1 4
×1 3
=1 4 1 16