发布网友 发布时间:2024-10-23 21:26
共3个回答
热心网友 时间:2024-11-06 08:20
来几题吧 29+52+48 698-275-25 48×37+52×37 79×68-79×58 88×125 99×87 101×56 (40+4)×25
热心网友 时间:2024-11-06 08:16
3.7x2.5+0.3x2.5=(3.7 +0.3)X2.5=4X2.5=10 0.125x(8+0.8)=0.125X8+0.125X0.8=1+0.1=1.1 1.6x7.8x1.25=7.8X2X0.8X1.25=7.8X2X1=15.6 解方程 4(x-6)=36 4x-24=36 4x=36+24 x=60/4 x=15 2x+0.2xx2=36 2x+0.4x=36 2.4x=36 x=36/2.4 x=15 根据...
热心网友 时间:2024-11-06 08:20
0.25x16.2x4
=0.25×4×16.2
=1×16.2
=16.2
4.8x7.8+78x0.52
=4.8×7.8+7.8×5.2
=7.8×(4.8+5.2)
=7.8×10
=78
3.72x3.5+6.28x3.5
=3.5×(3.72+6.28)
=3.5×10
=35
36.8-3.9-6.1
=36.8-(3.9+6.1)
=36.8-10
=26.8
25.48-(9.4-0.52)
=25.48+0.52-9.4
=26-9.4
=17.6