2.96×40 求简便运算,
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2.96×40 求简便运算,
2.96×40
=(3-0.04)×40
=3×40-0.04×40
=120-1.6
=121.6
2.96×40
=29.6×4
=(30-0.4)×4
=30×4-0.4×4
=120-1.6
=118.4
3×40-0.04×40
296*4*0.1=
2.96×40 求简便运算,
2.96×40
=(3-0.04)×40
=3×40-0.04×40
=120-1.6
=121.6
2.96×40
=29.6×4
=(30-0.4)×4
=30×4-0.4×4
=120-1.6
=118.4
3×40-0.04×40
296*4*0.1=