简便计算. ①111111÷1111×3333=_ ②6.25×0.16+2.64×0.0625+5.2×6.25=_ ③1/2-1/3+1/4-1/5+1/6-1/12=_.

问题描述:

简便计算.
①111111÷1111×3333=______
②6.25×0.16+2.64×0.0625+5.2×6.25=______

1
2
-
1
3
+
1
4
-
1
5
+
1
6
-
1
12
=______.

①111111÷1111×3333,=111111×3333÷1111,=111111×(3333÷1111),=111111×3,=333333;②6.25×0.16+264×0.0625+5.2×6.25,=6.25×0.16+2.64×6.25+5.2×6.25,=6.25×(0.16+2.64+5.2),=6.25×8,=(6+...