问题
解答题
计算下面各题,能简算的请简算. 95.6×1.8+0.18×44 87.5÷12.5÷8 0.125+3.7×
0.25×64×1.25 83×101 7.7×7+7.7+2×7.7. |
答案
(1)95.6×1.8+0.18×44
=956×0.18+0.18×44
=(956+44)×0.18
=1000×0.18
=180;
(2)87.5÷12.5÷8
=87.5÷(12.5×8)
=87.5÷100
=0.875;
(3)0.125+3.7×
+1 8
×5.31 8
=
×(1+3.7+5.3)1 8
=
×101 8
=1.25;
(4)0.25×64×1.25
=0.25×8×8×1.25
=(0.25×8)×(8×1.25)
=2×10
=20;
(5)83×101
=83×(100+1)
=83×100+83×1
=8300+83
=8383;
(6)7.7×7+7.7+2×7.7
=7.7×(7+1+2)
=7.7×10
=77.