3.6×0.59-0.36×0.9+36×0.005简便运算?
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3.6×0.59-0.36×0.9+36×0.005
=3.6x0.59-3.6x0.09+3.6x0.05
=3.6(0.59-0.09+0.05)
=3.6x0.55
=(4-0.4)x0.55
=4x0.55-0.4x0.55
=2.2-0.22
=1.98
=3.6x0.59-3.6x0.09+3.6x0.05
=3.6(0.59-0.09+0.05)
=3.6x0.55
=(4-0.4)x0.55
=4x0.55-0.4x0.55
=2.2-0.22
=1.98
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3.6×0.59-0.36×0.9+36×0.005
=3.6×0.59-3.6÷10×0.9+3.6×10×0.005
=3.6×0.59-3.6×0.9÷10+3.6×(10×0.005)
=3.6×0.59-3.6×(0.9÷10)+3.6×0.05
=3.6×0.59-3.6×0.09+3.6×0.05
=3.6×(0.59-0.09+0.05)
=3.6×(0.5+0.05)
=3.6×0.5+3.6×0.05
=1.8+0.18
=1.98
运用乘法分配律,拆分 结合律,简便运算。
=3.6×
=3.6×0.59-3.6÷10×0.9+3.6×10×0.005
=3.6×0.59-3.6×0.9÷10+3.6×(10×0.005)
=3.6×0.59-3.6×(0.9÷10)+3.6×0.05
=3.6×0.59-3.6×0.09+3.6×0.05
=3.6×(0.59-0.09+0.05)
=3.6×(0.5+0.05)
=3.6×0.5+3.6×0.05
=1.8+0.18
=1.98
运用乘法分配律,拆分 结合律,简便运算。
=3.6×
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原式=36x0.059-36x0.009+36x0.005=36(0.059-0.009+0.005)36x0.055=1.98
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