发布网友 发布时间:2023-12-01 13:45
共1个回答
热心网友 时间:2024-12-01 00:21
(1-0.2)*(2-1.68)
=0.8X0.32
=0.256
(1-0.2)x(2-1.68)=0.8×0.32=0.8×0.3+0.8×0.02=0.24+0016=0.256
1-0.2除以0.5x0.7 简便运算
1-0.2÷0.5×0.7
=1-0.2×2×0.7
=1-0.4×0.7
=1-0.28
=0.72
-3-[-5+(1-0.2乘3/5)除以(-2)]
=-3-[-5+(1-3/25)除以(-2)]
=-3-[-5+22/25)除以(-2)]
=-3-[-5-11/25]
=-3+5+11/25
=2又11/25
=-25-[-4+(1-1/25)÷(-2)]
=-25-(-4-24/25÷2)
=-25-(-4-12/25)
=-25+4+12/25
=-21+12/25
=-20又25分之13
0.32+1.68-0.32+1.68
=0.32-0.32+1.68+1.68
=0+1.68+1.68
=3.36
1.68÷3.98×3.98
=1.68×(3.98÷3.98)
=1.68×1
=1.68
2.316÷0.08-1.68的简便运算
2.316÷0.08-1.68
=28.95-1.68
=27.27
直接计算
6.73-(2.73+ 1.68)
=6.73-4.41
=2.32
没有简算,直接计算
对么?
原式
=7.26+0.6-4.32+1.68-0.6
=3+1.68-0.6
=4.68-0.6
=4.08不会追问,望采纳