1.25×4×2.5×0.8
=(1.25×0.8)×(4×2.5)
=1×10
=10
9.06×9+9.06
=9.06×(9+1)
=9.06×10
=90.6
25×1.6
=(25×4)×0.4
=100×0.4
=40
8.98×101
=8.98×(100+1)
=8.98×100+8.98
=898+8.98
=906.98
1.25×(0.8+0.4)
=1.25×0.8+1.25+0.4
=1+0.5
=1.5
3.69+3.69*99
=3.69×(1+99)
=3.69×100
=369
4.52*9.9+0.452
=4.52×9.9+4.52×0.1……………变一变就简便
=4.52×(9.9+0.1)
=4.52×10
=45.2
0.125*32*32*0.25 ……………变一变就简便
=(0.125×8)×32×(4×0.25)
=1×32×1
=32
19.8*4-9.8*4
=4×(19.8-9.8)
=4×10
=40
*1.25
=8.8×1.25
=1.1×(8×1.25)
=1.1×10
=11
0.25*1.5*40
=(0.25×40)×1.5
=10×1.5
=15
3.6*5.8-36*0.08
=3.6×5.8-3.6×0.8
=3.6×(5.8-0.8)
=3.6×5
=18da jiaantadetiwenxie3.6*5.8-36*0.080.25*1.5*40 0.25*1.5*40 0.25*1.5*403.6*5.8-36*0.08……………变一变就简便=3.6×5.8-3.6×0.8=3.6×(5.8-0.8)=3.6×5=180.25*1.5*40=(0.25×40)×1.5=10×1.5=150.25*1.5*40=(0.25×4)×(1.5×10)=1×15=15
用简便方法计算 1.25*4*2.5.0.8 9.06*9+9.06 25*1.6 8.98*101 < 5.> 1.25*
用简便方法计算 1.25*4*2.5.0.8 9.06*9+9.06 25*1.6 8.98*101 < 5.> 1.25*
.3.69+3.69*99 4.52*9.9+0.452 0.125*32*32*0.25 19.8*4-9.8*4 *1.25 0.25*1.5*40 3.6*5.8-36*0.08
.3.69+3.69*99 4.52*9.9+0.452 0.125*32*32*0.25 19.8*4-9.8*4 *1.25 0.25*1.5*40 3.6*5.8-36*0.08
数学人气:144 ℃时间:2020-01-28 17:51:39
优质解答
我来回答
类似推荐
猜你喜欢
- 1已知ab有理数,且(a+1/2)的平方+(2b-4)的平方等于0,求-a的平方+b的平方的值
- 2none后面的谓语动词用单数还是复数?none of呢?
- 3今年小麦产量比去年增产25%表示的意义是( )
- 4桃花源记 一词多义
- 5英语语法问题:It seems going to rain,and hence I should take an umbrella.一句中的and可否省略?
- 6把三个棱长一厘米的正方体积木拼成一个长方体,这个长方体的表面积是多少?
- 7已知△ABC的三边a、b、c满足等式:a2+b+|c−1-2|=6a+2b−3-7,试判断△ABC的形状.
- 8一艘小船的质量为100kg,两个人共120kg,在船上受到的浮力? 此时船排开水的体积?
- 9甲,乙两人再相距18KM的两地同时出发,相向而行,1小时48分相遇,如果甲比乙早出发40分钟,那么在乙出发1
- 10科学家推断出目前宇宙的年龄有多大