19×5+28要把运算顺序改为先算加法,再算乘法,算式应该改为______

2025-05-16 08:50:41
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要把19×5+28运算顺序改为先算加法,再算乘法,应为:
19×(5+28),
=19×33,
=627,
故应填:19×(5+28).