总述:本次共解5题。其中
☆算术计算5题
〖1/5算式〗
作业:求算式 1.1+1.91+1.991+1.9991+1.99991+1.999991+1.9999991 的值.
题型:数学计算
解:
1.1+1.91+1.991+1.9991+1.99991+1.999991+1.9999991
=3.01+1.991+1.9991+1.99991+1.999991+1.9999991
=5.001+1.9991+1.99991+1.999991+1.9999991
=7.0001+1.99991+1.999991+1.9999991
=9.00001+1.999991+1.9999991
=11.000001+1.9999991
=13 答案:1.1+1.91+1.991+1.9991+1.99991+1.999991+1.9999991=13〖2/5算式〗
作业:求算式 3.2×3.3×3.4+6.4×6.6×6.8+9.6×9.9×10.2+12.8×13.2×13.6 的值.
题型:数学计算
解:
3.2×3.3×3.4+6.4×6.6×6.8+9.6×9.9×10.2+12.8×13.2×13.6
=10.56×3.4+6.4×6.6×6.8+9.6×9.9×10.2+12.8×13.2×13.6
=35.904+6.4×6.6×6.8+9.6×9.9×10.2+12.8×13.2×13.6
=35.904+42.24×6.8+9.6×9.9×10.2+12.8×13.2×13.6
=35.904+287.232+9.6×9.9×10.2+12.8×13.2×13.6
=35.904+287.232+95.04×10.2+12.8×13.2×13.6
=35.904+287.232+969.408+12.8×13.2×13.6
=35.904+287.232+969.408+168.96×13.6
=35.904+287.232+969.408+2297.856
=323.136+969.408+2297.856
=1292.544+2297.856
=3590.4 答案:3.2×3.3×3.4+6.4×6.6×6.8+9.6×9.9×10.2+12.8×13.2×13.6=3590.4〖3/5算式〗
作业:求算式 399999999996×899999999991÷599999999994-599999999994 的值.
题型:数学计算
解:
399999999996×899999999991÷599999999994-599999999994
=很抱歉,数据太大,敬请等待版本升级!
〖4/5算式〗
作业:求算式 1.01×1.05+1.05×1.09+1.09×1.13+1.13×1.17+1.17×1.21 的值.
题型:数学计算
解:
1.01×1.05+1.05×1.09+1.09×1.13+1.13×1.17+1.17×1.21
=1.0605+1.05×1.09+1.09×1.13+1.13×1.17+1.17×1.21
=1.0605+1.1445+1.09×1.13+1.13×1.17+1.17×1.21
=1.0605+1.1445+1.2317+1.13×1.17+1.17×1.21
=1.0605+1.1445+1.2317+1.3221+1.17×1.21
=1.0605+1.1445+1.2317+1.3221+1.4157
=2.205+1.2317+1.3221+1.4157
=3.4367+1.3221+1.4157
=4.7588+1.4157
=6.1745
答案:1.01×1.05+1.05×1.09+1.09×1.13+1.13×1.17+1.17×1.21=6.1745
〖5/5算式〗
作业:求算式 163.84-81.92-40.96-20.48-10.24-5.12-2.56-1.28 的值.
题型:数学计算
解:
163.84-81.92-40.96-20.48-10.24-5.12-2.56-1.28
=81.92-40.96-20.48-10.24-5.12-2.56-1.28
=40.96-20.48-10.24-5.12-2.56-1.28
=20.48-10.24-5.12-2.56-1.28
=10.24-5.12-2.56-1.28
=5.12-2.56-1.28
=2.56-1.28
=1.28
答案:163.84-81.92-40.96-20.48-10.24-5.12-2.56-1.28=1.28
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