250乘以括号67×4寡,八乘,以括号125-20,括号等于,44乘于25,等于681+75+21

2025-02-22 15:03:40
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回答1:

250×(67×4)
=250×4×67
=1000×67
=6700

8×(125-20)
=8×125-8×20
=1000-160
=840

44×25
=11×(4×25)
=11×100
=1100
681+75+219
=681+219+75
=900+75
=975

47+195+305
=47+(195+305)
=47+500
=547