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计算下面各题 怎样算简便就怎样算.(1)56+311+511+16(2)67+14-914(
问题详情
计算下面各题,怎样算简便就怎样算. (1)56+311+511+16
(1)5 6+ 3 11+ 5 11+ 1 6
(2)6 7+ 1 4- 9 14
(3)51.27-8.66-1.34
(4)32.5÷(0.05×50)
(5)1 2+ 1 6+ 1 12+ 1 20
(6)4 5-( 2 3- 1 2).
参考答案
=(56+16)+(311+511),
=1+811,
=1811;
(2)67+14-914
=2428+728-1828,
=1328;
(3)51.27-8.66-1.34
=51.27-(8.66+1.34),
=51.27-10,
=41.27;
(4)32.5÷(0.05×50)
=32.5÷52,
=652×25,
=13;
(5)12+16+112+120
=(612+212+112)+120,
=34+120,
=45;
(6)45-(23-12)
=45-16,
=1930.考点: