问题 解答题

10640÷560=

504900÷4900=

213×105=

49×215=

答案

10640÷560

=10640÷(80×7)

=10640÷80÷7

=19,

504900÷4900=103…200

1 0 3

4900

504900

4 90 0

_________________

1 4 9 0 0

1 4 7 0 0

_________________

2 0 0

213×105=22365

2 1 3

×1 0 5

__________________

1 0 6 5

2 1 3

___________________

2 2 3 6 5

49×215=10535

4 9

×2 1 5

__________________

2 4 5

4 9

9 8

_________________

1 0 5 3 5

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