五年级小数乘除法口算练习题 难 百度文库
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/13 13:47:48
8.7×17.4-8.7×7.4=12.5×0.4×2.5×8=0.68÷(5.2-3.5)×1.25=(0.25+2.5+25)×0.4=5-0.9×0.2+1.8÷0.5=6.4×3.28+4.6
1.45+15×6=1352.250÷5×8=4003.6×5÷2×4=604.30×3+8=985.400÷4+20×5=2006.10+12÷3+20=347.(80÷20+80)÷4=218.7
1.8x2.52.8x0.470.48x3.29.12x0.240.27x1.825.3x5.250.9x85400x2.5543.3x2.64.28x2.44036x2.528.6x.8.522.9
小小年纪不要偷懒学习还是为自己学的
51+(2304-2042)×234215+(4361-716)÷81(247+18)×27÷2536-720÷(360÷18)1080÷(63-54)×80(528+912)×5-61788528÷
答题的太累了,你去百度文库找找吧!别忘点赞同.——很重要的!
12÷3/5=12×(5/3)9÷6/7=9×(7/6)30÷5/6=30×(6/5)4×(3/2)=4÷2/3(4)÷5/7=4×7/53÷4/5=3×5/4(24)÷7/16=24×(16/7)A
是小数×小数,还是小数×整数多着呢1.5×3.24.2×0.84.6×0.23.6×2.82.3×43.7×26.4×35.1×4
0.7×8=5.60.6×0.9=0.540.5×0.8=0.41.2×0.4=0.481.5×0.6=0.90.25×4=10.4×0.9=0.360.12×100=127.9×100=7900.4
8.7-1.9-3.1=0.7×16–16×0.3=(12.5+1.25)×0.8=(5.6+3.5)÷0.7=9.1÷4-3.1÷4=8.92-0.03-1.97=0.175÷0.25÷4=0.8×
0.7×8=5.60.6×0.9=0.540.5×0.8=0.41.2×0.4=0.481.5×0.6=0.90.25×4=10.4×0.9=0.360.1×5.3=0.530.12×100=127.
8+15x=236x+69x=758(2x+2)=8026+26x=56125x+59=265
问题补充:一定要分数.如()/()*()/()=()/()也可以5分之9×7分之5=7分之916÷8分之5=5分之1288分之5÷15分之4=
1]8.7-1.9-3.1=0.7×16–16×0.3=2](12.5+1.25)×0.8=(5.6+3.5)÷0.7=3]9.1÷4-3.1÷4=8.92-0.03-1.97=4]0.175÷0.2
两位数乘法速算口诀一般口诀:首位之积排在前,首尾交叉积之和十倍再加尾数积.如37x64=1828+(3x4+7x6)x10=23681、同尾互补,首位乘以大一数,尾数之积后面接.如:23×27=621
7.2+2.80.93÷3.19-2.80.36+0.648.4÷0.4234*0.538+29+6232÷4+6÷2100(200+9)5.6×2.93.77×1.80.02×965.22×0.33
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口算2.4÷0.8=5.4÷10=0.45÷0.15=3.6÷0.1=3.2÷100=8.5÷1.7=1.2÷0.3=0.49÷0.7=0.096÷0.03=84÷4.2=0÷0.25=1÷0.01=
7×40=680,100-63=37,3.2+1.68=4.88,2.8×0.4=1.1214-7.4=6.6,1.92÷0.04=48,0.32×500=160,0.65+4.35=510-5.4=