简便运算4.87减一点6+5点一三-2点三四
简便运算4.87减一点6+5点一三-2点三四
简便运算4.87减一点6+5点一三-2点三四
4.87减一点6+5点一三-2点三四
=4.87+5.13-(1.66+2.34)
=10-4
=6
十七点6+5点七四-8点三二的简便运算
17.6+5.74-8.32
=17+5-8+0.6+(0.74-0.32)
=14+0.6+0.42
=15.02
36.42减8.64减四点三6的简便运算
36.42-8.64-4.36
=36.42-(8.64+4.36)
=36.42-13
=23.42
5.38乘三点9+5点三八×6点一的简便运算
5.38乘三点9+5点三八×6点一
=5.38×(3.9+6.1)
=5.38×10
=53.8。
34×0点三五+3点4×5点8+0点三四×7的简便运算
34×0点三五+3点4×5点8+0点三四×7的简便运算
=34x(0.35+0.58+0.07)
=34x1
=34
八点四乘101点三减八点四乘一点八的简便运算
8.4*101.3-8.4*1.8
=8.4(101.3-1.8)
=8.4(100-0.5)
=840-4.2
=835.8
3.19+3点一九×7点三的简便运算
3.19+3点一九×7点三的简便运算
3.19+3点一九×7点三
=3.19*(1+7.3)
=3.19*(8+0.3)
=3.19**8+3.19*0.3
=26.477
零点2×4点7+8点2×5点三简便运算
0.2x4.7+0.2x5.3
=0.2x(4.7+5.3)
=0.2x10
=2
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如对本题有疑问可追问,Good luck!
9.14减四点儿五七减一点四三的差怎样简便运算
答:9.14减四点五七减一点四三
=9.14-(4.57+1.43)
=9.14-6
=3.14
一点五加零点六八减零点三简便运算
零点六八减零点三在加!