小学六年级数学简便计算复习题.doc

简 便 计 算 6.62.5 4.6+5.4 () 2.8+7.2+ +2.25+ + + + 0.75+0.375 +(+) 5- 48.3- 4.25+60.6250.5+62.5% 2.5(+)22+2575%-70.75 0.2563.5 2.5-+3.125+ +(-1.8) (111+999) 56(-) 49.5-(50-)0.6 + 45(+0.6) 89737.5%+1040.375 (5.375) 3.5+1.25+3.8 7199 3755+2996 8439+1001 446+295 888+999 1125-996 299101 563999 21002060.25 72156-5672 253212570999+709 0.2548 2.50.4226.6+2.56 75.399+75.3 4.63.7+540.37 0.125+8.25+12.5% 1161 154.255826.573.43 4.6+3+6+5.4 4+2.25+5+7 9.632.54 8.37-3.25-(1.37+1.75)