2.37*6.3/2.37*3.7 简便计算 2.5*1.25*0.32 3.8*10.1 2.4*0.8-4.48/2.8 2.6/【8.06/2-3.13】*1.4
2.37*6.3/2.37*3.7 简便计算 2.5*1.25*0.32 3.8*10.1 2.4*0.8-4.48/2.8 2.6/【8.06/2-3.13】*1.4
2.37*6.3/2.37*3.7
=(6.3/3.7)*(2.37/2.37)
=6.3/3.7
=63/37
2.5*1.25*0.32
=2.5*1.25*0.4*0.8
=2.5*0.4*(1.25*0.8)
=1*1
=1
3.8*10.1
=3.8*(10+0.1)
=3.8*10+3.8*0.1
=38+0.38
=38.38
2.4*0.8-4.48/2.8
=2.4*0.8-1.6
=(2+0.4)*0.8-1.6
=2*0.8+0.4*0.8-1.6
=1.6+0.32-1.6
=1.6-1.6+0.32
=0.32
2.6/【8.06/2-3.13】*1.4
=2.6/(4.03-3.13)*1.4
=2.6/0.9*1.4
=1.3/0.9*0.7
=130/63
2.37*6.3/2.37*3.7 要求简便计算
题目应该是：2.37*6.3+2.37*3.7？
2.37*6.3+2.37*3.7
=2.37*（6.3+3.7）
=2.37*10
=23.7
2.4*0.8-4.48/2.8怎样简便计算
2.4×0.8-4.48÷2.8=2.4×0.8-(4×1.12)÷(4×0.7)=2.4×(1-0.2)-1.12÷0.7=2.4-0.48-1.6=2.4-1.6-0.48=08-0.48=0.32
2.4*0.8-4.48/2.8怎么简便计算
=1.92-1.6
=0.32
直接计算即可。
简便计算6.3/1.4
6.3/1.4
=(7x0.9)/(7x0.2)
=0.9/0.2
=4.5
6.3/3.6简便计算
=(7*0.9)/(4*0.9)
=7/4
10/0.2/2.5 用简便计算 1.25*3.2*0.8 14.64+3.7*2.8 64*4.5+3.6*45 14.5*102 8.4/0.21/0.5
10/0.2/2.5 = 10 / (0.2*2.5) = 10 / 0.5 = 20;
1.25*3.2*0.8 = 1.25 * 0.8 * 3.2 = 1 * 3.2 = 3.2
14.64+3.7*2.8 = 14.64 + 3.7 * (3-0.2) = 14.64 + 11.1 - 0.74 = 25.74 -0.74 = 25
64*4.5+3.6*45 = 64*4.5+36*4.5 = (64+36)*4.5 = 100*4.5 = 450
14.5*102 = 14.5*(100+2) = 14.5*100 + 14.5*2 = 1450 + 29 = 1479
8.4/0.21/0.5 = 0.4*3*7 / (0.03*7)/0.5 = 0.4/(0.01*0.5) = 80
200/1.25/25/0.8/1.4/(2-1.02)的简便计算
简便计算
200×1.25×25×0.8×1.4×(2-1.02)
=（200×25）×（1.25×0.8）×（1.4×0.98）
=5000×1×1.372
=6860
2.6/1.5+74/15+15/4.5简便计算
2.6/1.5+74/15+15/4.5简便计算
=26/15+74/15+50/15
=（26+74+50）/15
=150/15
=10
