(1.25+2.5)×16 = 1.25×3.7×0.8= 3.4×9+3.4= 9.24×9+3.4= 简算
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/10/04 05:29:32
(1.25+2.5)×16 = 1.25×3.7×0.8= 3.4×9+3.4= 9.24×9+3.4= 简算
(1.25+2.5)×16 = 1.25×16 +2.5×16 =1.25×8×2+2.5×4 ×4=20+40=60
1.25×3.7×0.8=1.25×0.8×3.7=1 ×3.7=3.7
3.4×9+3.4=3.4×9+3.4×1=3.4×(9+1)=3.4×10=34
9.24×9+3.4= 9.24×(10-1)+3.4=92.4-9.24+3.4=95.8-9.24=86.56
愿对你有所帮助!
1.25×3.7×0.8=1.25×0.8×3.7=1 ×3.7=3.7
3.4×9+3.4=3.4×9+3.4×1=3.4×(9+1)=3.4×10=34
9.24×9+3.4= 9.24×(10-1)+3.4=92.4-9.24+3.4=95.8-9.24=86.56
愿对你有所帮助!
(1.25+2.5)×16 = 1.25×3.7×0.8= 3.4×9+3.4= 9.24×9+3.4= 简算
9x-8.8x-8=3.4解方程
0.45乘2.50.45×2.5= 0.8×1.25= 0.3×3.6= 0.3×0.3= 10×0.07= 0.3×1
设全集U={1.2.3.4.5},集合A{2.3.4},B={2.5},则B∪(CuA)=?
15.6×3.4+1.56×66= 简便计算
0.25×4.78 3.4×9+3.4 2.7×4.3+2.7×5.7 1.25×11×0.8 4.6×102 用简便方
5x—4.9x=0.31 3.4÷x=4.8÷24 8—3(x+0.2)=0.8
1.25乘3.4乘0.8简便运算
12.6*1.25+3.4/0.8+1.4*12.5
54.9×0.38= 4.05+37.85= 1.25×0.7×0.8= 9.8×25= 2.96
3÷()=4分之5×()=5比()=1.25=16分之()
40×1.25×2.5×0.08=(40×2.5)×(1.25×0.08),计算的依据是什么