作业帮求五年级下册简便运算,求了,记得带答案!
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求五年级下册简便运算,求了,记得带答案!
求五年级下册简便运算,求了,记得带答案!
求五年级下册简便运算,求了,记得带答案!
7/8-7/8*1/5
=7/8-7/40
=28/40
=7/10
48*(11/12-3/40-1/6)
=48*(110/120-9/120-20/120)
=48*81/120
=5/162
73×25/72
=(72+1)×25/72
=72×25/72+1×25/72
=25+25/72
=25 (32+9.774/2.4)*0.4
=32*0.4+4.0725*0.4
=12.8+1.629
=14.429
0.888*1.6-0.222*4*0.6
=0.888*1.6-0.888*0.6
=0.888*(1.6-0.6)
=0.888 2.93×5.4+29.3×0.46
=29.3×0.54+29.3×0.46
=29.3×（0.54+0.46）
=29.3 13.91×8+6.09÷0.125
=13.91×8+6.09×8
=（13.91+6.09）×8
=20×8
=160
35.6*0.8+3.56*12
=3.56*8+3.56*12
=3.56*(8+12)
=3.56*20
=71.2
3.4+17×3.4+18×1.6
=3.4×(1+17)+18×1.6
=3.4×18+18×1.6
=18×(3.4+1.6)
=18×5
=90
13÷7+8÷7
=(13+8)÷7
=21÷7
=3
7.8×4.86÷3.9
=7.8÷3.9×4.86
=2×4.86
=9.72 3.3÷0.55×0.8÷1.2
=3.3÷1.2×0.8÷0.55
=2.75×0.8÷0.55
=2.2÷0.55
=4
3.75×0.5+6.25÷2
=3.75×0.5+6.25×1/2
=3.75×0.5+6.25×0.5
=（3.75+6.25）×0.5
=10×0.5
=5 4.83÷5＋2.17÷5
=(4.83+2.17)÷5
=7÷5
=1.4 .(8/9+2/3-2/27)*27
=8/9*27+2/3*27-2/27*27
=24+18-2
=40 3.5*1/5÷5*4/5
=1÷5*4/5
=4/25
24*51/43+51*19/43
=51/43(24+19)
=51
要题目要答案?
哪页的啊?第几题,不可能一本都要吧?
啥意思
672-36-64
=672-(36+64)
=672-100
=572
49.36-(9.36+10.51) 563-9.99
= 49.36-9.36-10.51 =563×(10-0.01)
=40-10.51 =563×10-0.01×563
=20...
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49.36-(9.36+10.51) 563-9.99
= 49.36-9.36-10.51 =563×(10-0.01)
=40-10.51 =563×10-0.01×563
=20.49 =5630-5.36
= 5624.37
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