竖式计算.(最后一小题要验算) 5.5+1.8= 9-1.8= 35×32= 520÷2=验算.

2025-06-23 04:45:18
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回答1:

(1)5.5+1.8=7.3 (2)9-1.8=7.2 (3)35×32=1120 (4)520÷2=260