如题所述
=4.4x(1+12)+13x5.6
=4.4x13+13x5.6
=(4.4+5.6)x13
=10x13
=130
希望对你有所帮助 还望采纳~~
=4.4x13+13x5.6
=(4.4+5.6)x13
=10x13
=130
希望对你有所帮助 还望采纳~~
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第1个回答 2017-01-20
4.4+4.4×12+13×5.6
=4.4×(1+12)+13×5.6
=4.4×13+13×5.6
=13×(4.4+5.6)
=13×10
=130
=4.4×(1+12)+13×5.6
=4.4×13+13×5.6
=13×(4.4+5.6)
=13×10
=130
第2个回答 2017-01-20
看下图
。。。
第3个回答 2017-01-20
原式=4.4×13+13×5.6=13×（4.4+5.6）=13×10=130
