1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
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1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.011+0.99-0.98-0.97+0.96+
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
=(1-0.98)+(0.99-0.97)+(0.96-0.94)+(0.95-0.93)+……+(0.04-0.02)+(0.03-0.01)
=0.02*50=1
=(1-0.98)+(0.99-0.97)+(0.96-0.94)+.....=0.02*50=1
0.01+0.02+0.03+.+0.97+0.98+0.99=?
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+...+0.04+0.03-0.02-0.01简便运算
0.01+0.02+0.03+0.04+……+0.97+0.98+0.99+1=?
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+.+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+.+0.08+0.07-0.06-0.05+0.04+0.03-0.
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+.+0.04+0.03-0.02-0.01=( )
0.01+0.02+0.03+0.04+...+0.96+0.97+0.98+0.99=
0.01+0.02+0.03+.+0.97+0.98+0.99=?kkkkk
0.99*4+0.98*4+0.97*4+...0.91*4=?
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+…+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
小数加减法的简便计算1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+...+0.04+0.03-0.02-0.01
0.3+0.5+0.7+0.9+.+0.91+0.93+0.95+0.97+0.99=?
计算:0.1+0.3+0.5+0.7+0.9+0.11+...+0.97+0.99=?
0.1+0.3+…+0.9+0.11+0.13+0.15+…+0.97+0.99
用简便运算的方法算以下几题~(1)0.99+0.98-0.97-0.96+0.95+0.94-0.93-0.92+……-0.08+0.07+0
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+``````+0.08+0.07-0.06-0.05+0.04+0.03-0.2-0.1=请在一刻钟内回答,
0.01+0.02+0.03+……+0.97+0.98+0.99(简算)快
0.99-0.98-0.97+0.96+0.95-0.94-0.93+...+0.04+0.03-0.02-0.01(简算)