小数乘除法计算题
发布时间:2018-06-27 11:50:49
发布时间:2018-06-27 11:50:49
小数计算题
用竖式计算
85.44÷16 42.84÷7 101.7÷9 67.5÷15
21.24÷36 0.736÷23 43.5÷12 35.21÷7
6.21÷0.03 210÷1.4 51.3÷0.27 91.2÷3.8
0.66÷0.3 11.97÷1.5 69.6÷2.9 15÷0.06
3.77×1.8 0.02×96 5.22×0.3 9.99×0.02
4.67×0.9 5×2.44 9.435×0.002 5.6×6.5
(循环小数的用简便方法,除不尽保留2位小数):
8.2÷0.12 0.8÷0.9 4.7÷3 1.25÷1.2
32÷42 8.33÷6.2 1.7÷0.03 2.41÷0.7
2.5÷0.7= (保留三位小数) 10.1÷3.3= (商用循环小数)
10.75÷12.5= (用乘法验算) 3.25×9.04= (用除法验算)
脱式计算(能简算的要简算)
2.5×7.1×4 16.12×99+16.12 5.2×0.9+0.9
7.28×99+7.28 4.3×50×0.2 64-2.64×0.5
4.8×100.1 56.5×99+56.5 7.09×10.8-0.8×7.09
4.85 + 0.35 ÷ 1.4 8.7 × 17.4 - 8.7 × 7.4 12.5×0.4×2.5×8
6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.8
(9.37+9.37+9.37+9.37)× 2.5 2.37×6.3+2.37×3.7
2.5×1.25×0.32 2.5×(3.8×0.04) 0.125×72
6.8×0.75÷0.5 3.75÷0.125–2.75 1.53+23.4÷7.2
9.5×99 13.5×0.98 12.5×8.8
解方程
X+8.3=10.7 0.5x =30 x-5.6=9.4 x÷0.8=90
5.3+7x=7.4 3x÷5=4.8 X-0.8X=6 12x+8x=4.8
7(x-2)=49 4×8+2x=36 0.2x-0.4+0.5=3.7
9.4x-0.4x=16.2 22-0.4x=12 6.7x-60.3=6.7
12 ÷0.5x=8 126-3.5x=56
口算
(一)
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89=
8.1-5.1= 0.728-0.24= 0.8+0.18= 0.89-0.25= 1-0.98= 0.048+0.52= 19.9+11.1= 187÷1000= 1+3.89= 0.081×10= 75÷10= 0.96÷0.8= 0.8×7= 1.5×7= 1.32×8= 0.7×8= 10.3×2= 5×0.6= 0.9×0.3= 3.5×0.2= 2.01×0= 10×0.05= 0.13×7= 0.21×100=
0.7×4= 0.05×4= 4×0.3= 0.17+0.06=
1.02-0.09= 7200÷800= 0.17+0.6= 0.83-0.6=
0.98-0.09= 0.2+0.78= 600×500= 10.2+0.02=
(二)
0.15+0.7= 10.2+0.2= 8500÷500= 0.35+0.5= 0.35+0.63= 3500÷70= 3.8+0.38= 7500÷250= 0.95-0.05=
450+780= 4.5-0.4= 9.5-5= 330×9=
9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05= 2.5+3.2= 0.74+0.16= 2.3×100= 9.8-4.8= 480÷40= 0.53÷100= 5.1+2.3= 125×80= 0.078÷10= 0.52+0.4= 70×12=
(三)
0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 7.82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8= 21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100= 0.92-0.2=
3.5+4.8= 3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 8-4.6= 0.52+0.4= 6.45+5.5=
(四)
9.53-1.53= 8.8-6.7= 10+0.08= 9.5-7.3=
7.82+0.3= 8.8-6.7= 9.5-7.3= 1-0.95= 0.96-0.35= 9.53-1.53= 0.25+0.75= 0.83-0.5= 12.5×8= 2.3×4= 3.25×0= 0.4×50=
30×0.1= 2.6×3= 4.1×2= 0.35×0.2= 2.5×2= 0.5×10= 0.6×8= 2.1×2= 0.7×0.8= 0.04×20= 5.6+0.4= 4.7+2.3=
6.9-2.5= 7.2×0.8= 6×3.4= 1.4×0.5=
0.75×100= 0.02×0.5= 3.6×0.3= 6.3÷7= 0.75÷0.25= 0.125×8= 4.8÷0.3= 0.56÷28=