求20道四年级简便运算题答:小学数学四年级计算题过关练习四1、⑴36加上36除720的商,再减去6,差是多少?⑵36加上720除以3.6的商,再减去6的差,和是多少?⑶36加上720除以3.6的商,再减去6,商是多少?2、⑴72减去4乘6的积,再除以3,差是多少?⑵72减去4的差乘以6,再除以3,商是多少?⑶72减去4的差乘以6与3的商,积是多少?3、⑴558...
小学四年级加减法口算题。答:210,237,25,600,44,250,640,123,3000,119,2000,8400, 167,15, 950,151,14,200,146,130,309,2772,644,126, 14,720,1400,503,900,117,184,3570,422,42,374,196, 300,57,122,331,165,2400,16,30,270,275,52,119,71, 1200