11.2×6.4 17.4×5.6×0.12× 1010简便运算?
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简便计算
11.2x6.4+17.4x5.6
=5.6x12.8+17.4x5.6
=5.6x(12.8+17.4)
=5.6x30.2
=5.6x30+5.6x0.2
=168+1.12
=169.12
11.2x6.4+17.4x5.6
=5.6x12.8+17.4x5.6
=5.6x(12.8+17.4)
=5.6x30.2
=5.6x30+5.6x0.2
=168+1.12
=169.12
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