Question

2.12÷2.5用简便运算怎么算?2.12÷2.5＝8.48

Answer 1

2.12÷2.5用简便运算怎么算?2.12÷2.5＝8.48

解2.12÷2.5
=0.212÷0.25
=0.212÷(1/4)
=0.212×4
=0.848

2.12*0.8*5的简便运算

2.12x0.8x5
=2.12x(0.8x5）
=2.12x4
=8.48

简便运算28.8-(3.45+5.15+2.12)

28.8-(3.45+5.15+2.12)=28.8-(8.60+2.12)=28.8-10.72=18.08

﹙2.5+2.5+2.5+2.5+2.5﹚简便运算

﹙2.5+2.5+2.5+2.5+2.5﹚
=2.5×5
=12.5
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10-2.12乘0.15乘4.5的简便运算

10-2.12乘0.15乘4.5的简便运算

10-2.12×0.5×4.5
=10-1.06×4.5
=10-4.77
=5.23.

2.5÷2.5×2.5+2.5÷2.5的简便运算

1x2.5+1=3.5

2.5加2.5乘1.65怎么简便运算

2.5+2.5×1.65
=2.5×(1+1.65)
=2.5×4×0.6625
=6.625
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6.4+3.6×2.5用简便运算怎么算

6.4+3.6×2.5用简便运算怎么算
6.4+3.6×2.5
=6.4+2.5*4*0.9
=6.4+9
=15.4

4.44×2.5怎么简便运算

4.44×2.5
=(1.11×4)×2.5
=1.11×(4×2.5)
=1.11×10
=11.1

12.4×2.5怎么简便运算

=3.1×4×2.5
=3.1×10
=31