六年级上册数学简便计算练习题(2)2页.doc

2.85.6+3.42+280%1.7+2.32.647+3.36+7.4+4+2.6+524(+) 0.125232 (+)27 1.252+30.8262 + 233 6.28+6.282 1018.752(1+3) 213 2600(26002+26004) 4.41.619+32 9.9 0.54.5+ 6+ + 22.85.6+3.42+280%1.7+2.32.647+3.36+7.4+4+2.6+524(+) 0.125232 (+)27 1.252+30.8262 +