3.6×9.8+36×0.02的简便运算
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3.6×9.8+36×0.02
=3.6×9.8+3.6×10x0.02
=3.6×9.8+3.6×0.2
=3.6x(9.8+0.2)
=3.6x10
=36
=3.6×9.8+3.6×10x0.02
=3.6×9.8+3.6×0.2
=3.6x(9.8+0.2)
=3.6x10
=36
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3.6×9.8+36×0.02
=3.6×9.8+3.6×0.2
=3.6×(9.8+0.2)
=3.6×10
=36
=3.6×9.8+3.6×0.2
=3.6×(9.8+0.2)
=3.6×10
=36
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3.6×9.8+36×0.02
=3.6×9.8+(36÷10)×(0.02×10)
=3.6×9.8+3.6×0.2
=3.6×(9.8+0.2)
=3.6×10
=36
=3.6×9.8+(36÷10)×(0.02×10)
=3.6×9.8+3.6×0.2
=3.6×(9.8+0.2)
=3.6×10
=36
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把36缩小10倍,0.02扩大10倍,3.6x9.8十(36÷10)x(0.02x10)=(9.8十0.2)x3.6=36
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=36×0.98+36×0.02
=36×(0.98+0.02)
=36
就是把9.8除以十凑成跟0.02相加等于一
=36×(0.98+0.02)
=36
就是把9.8除以十凑成跟0.02相加等于一
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