1.78x9.9的简便运箅
1.78*9.9=1.78*(10-0.1)=17.8-0.178=17.622
1.78X9.9+0.178简便计算
=1.78x(9.9+0.1)=1.78x10 =17.8
1.78×9.9+1.78简便算法
1.78×9.9+1.78 =1.78X9.9+1.78X1 =1.78X(9.9+1)=1.78X10.9 =19.402
1.78×9.9+1.78简便算法 咋没人回答
=1.78X(99+1)=1.78X100 =178
1.78x9.9 +17.8简算怎么答
1.78x9.9 +17.8简算怎么答 解 1.78x9.9 +17.8 =17.8×0.99+17.8 =17.8×(0.99+1)=17.8×(2-0.01)=35.6-0.178 =35.422
17.8×9.9简便计算怎样计算?
17.8×9.9的简便方法 17.8×9.9 =17.8×(10-0.1)=17.8×10-17.8×0.1 =178-1.78 =176.22
求300道五年级数学简便脱式计算 符号不要* 和 \/?
5.26X0.125+2.74÷8 公式4:a÷b÷c=a÷(b×c)6.3÷1.8 4.2÷3.5 9.5÷(1.9 × 8)12.8÷(0.4×1.6)930÷0.6÷5 63.4÷2.5÷0.4 (7.7+1.54)÷0.7 (11.7+9.9)÷0.9 简便计算:100-0.99 10.99+9.87 4.089÷0.047 0.24×390 6.9+4...
求五年级下册北师大版的解方程、递等式计算、简便计算
5.26X0.125+2.74÷8 公式4:a÷b÷c=a÷(b×c)6.3÷1.8 4.2÷3.5 9.5÷(1.9 × 8)12.8÷(0.4×1.6)930÷0.6÷5 63.4÷2.5÷0.4 (7.7+1.54)÷0.7 (11.7+9.9)÷0.9 简便计算:100-0.99 10.99+9.87 4.089÷0.047 0.24×390 6.9+4...
急需五年级下册加减法全简便运算(100)(要脱式)
5.26X0.125+2.74÷8 公式:a÷b÷c=a÷(b×c)6.3÷1.8 4.2÷3.5 9.5÷(1.9 × 8)12.8÷(0.4×1.6)930÷0.6÷5 63.4÷2.5÷0.4 (7.7+1.54)÷0.7 (11.7+9.9)÷0.9 竖式计算:100-0.99 10.99+9.87 4.089÷0.047 0.24×390 6.9+4....
17.8*9.9?
17.8×9.9 =17.8×(10-0.1)=17.8×10-17.8×0.1 =178-1.78 =176.22