巧算1.125+2.125+3.125+4.125+50125+...+50.125
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巧算1.125+2.125+3.125+4.125+50125+...+50.125巧算1.125+2.125+3.125+4.125+50125+...+50.125巧算1.125+2.125+3.
巧算1.125+2.125+3.125+4.125+50125+...+50.125
巧算1.125+2.125+3.125+4.125+50125+...+50.125
巧算1.125+2.125+3.125+4.125+50125+...+50.125
1+2+3+...+50+50*(0.125)
=(50*51)/2+6.25
=1281.25
你的题目应该是1.125+2.125+3.125+4.125+5.125+...+50.125吧？～
1+2+3+...+50+50*(0.125)
=(50*51)/2+6.25
=1281.25
巧算1.125+2.125+3.125+4.125+50125+...+50.125
1.125+2.125+3.125+.+100.125=
1.125+2.125+3.125+.80.125等于多少?
1.125+2.125+3.125+4.125……80.125 要过程
1.125+2.125.+3.125+4.125+5.125+……+50.125=
1.125＋2.125＋3.125＋4.125……80.125＝?
巧算：3.94-0.875-1.125
125+2.125+3.125.+80.125 （要写过程）
用简便方法计算 1.125×3×4 2.125×24 3.4×78×25
简算【3.91+（3+3÷7）+6.09+（6+4÷7）】×（2.125-1.125）+【1÷（2÷3）-1.5】×6.04
巧算—6.6-2.91+3.4-1.09=?3.125+（6.875-1.72）-3.28 4.99+4.99+4.99+0.04+4.99快
巧算!
巧算,
34.56-（4.56-3.7）= 6.6-2.91+3.4-1.09= 3.125+（6.875-1.72）-3.28= 4.99+4.99+4.99+0.04+4.99= 巧算
2.125/0.125求算式
6.25+3.85-2.125+3.875
3.125×7.4－3.125＋0.36×31.25 3.125×7.4－3.125＋0.36×31.25
8.125+(-12)+3.125