1.25×3.2×2.5怎么计算?
1.25×3.2×2.5怎么计算?
1.25×3.2×2.5
=1.25 x (0.8 x 4) x 2.5
=1.25 x 0.8 x 4 x2.5
=(1.25 x 0.8) x (4 x2.5)
=1 x 10=10
2.5×3.2×1.25简便计算怎么写
2.5×3.2×1.25=2.5×(0.4×8)×1.25=(2.5×0.4)×(8×1.25)=1×10=10
望采纳
36.45÷3.2÷2.5÷1.25简便计算
36.45÷3.2÷2.5÷1.25
=36.45÷(3.2×2.5×1.25)
=36.45÷(4×0.8×2.5×1.25)
=36.45÷(4×2.5×1.25×0.8)
=36.45÷(10×1)
=3.645
3.2×1.25×2.5 的简便计算
=(8×1.25)×(0.4×2.5)
=10×1
=10
用脱式计算。 8.84÷1.7+2.5/ 9.38-3.2÷2.5/ 2.5×1.6×1.25
用脱式计算。
8.84÷1.7+2.5
=5.2+2.5
=7.7
9.38-3.2÷2.5
=9.38-1.28
=8.1
2.5×1.6×1.25
=4×1.25
=5
1.25x2.5x3.2简便计算
=(1.25×8)×(2.5×0.4)
=10×1
=10
用简便方法计算。 2.5×9.8 1.25×25×3.2
2.5×9.8
=2.5X(10—0.2)
=2.5X10—2.5X0.2
=25—0.5
=24.5
1.25×25×3.2
=1.25X25X4X8
=(1.25X4)X(8X25)
=0.5X200
=100
1.25*3.2/2.5/4怎样简便计算
1.25×3.2÷2.5÷4
=(1.25×8×0.4)÷(2.5×4)
=4÷10
=0.4
简便计算! 1. 2.5×9.8 2. 1.25×25×3.2
1. 2.5×9.8
=2.5x(10-0.2)
=2.5x10-2.5x0.2
=25-0.5
=24.5
2. 1.25×25×3.2
=(1.25x8)x(0.4x25)
=10x10
=100
3. 2.4-1.375+5分之3
=2.4-+0.6-1.375
=3-1.375
=1.625
4 3分之1÷7分之3×14分之5
=1/3x7/3x5/14
=5/18