六年级数学,10道简便计算题带答案谢谢哦∩_∩?
1、2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
2、31.5×1.07-3.15×0.7
=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
3、2.7×5.7-2.7+5.3×2.7
=2.7×(5.7-1+5.3)
=2.7×10
=27
4、0.625÷0.125×0.8
=(0.625×0.8)×8÷(0.128×8)
=0.5×8÷1
=4
5、18.6×6.1+3.9×18.6
=18.6×(6.1+3.9)
=18.6×10
=186
6、1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
7、52.5×2.9+5.45
=5.25×29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
8、0.92×15+0.08×15
=(0.92+0.08)×15
=1×15
=15
9、25×32×125
=25×4×8×125
=(25×4)×(8×125)
=100×1000
=100000
10、4000÷125÷8
=4000÷(125×8)
=4000÷1000
=4
六年级下册简便计算只要题目不要过程答案
- 见6年级下册参考书一点通
六年级数学简便计算题目及答案~~~谢谢!!!!
- 注意是简便计算。
- 可是&8212;&8212;&8212;&8212;&8212;&8212;&8212;&8212;-题目呢