六年级数学计算题练习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 + 6.28+6.282 1018.752(1+3) 213 4.41.61 9+32 9.9 0.54.5 2 6.28+6.282 8.752(1+3) 213 4.41.61 87(367)3.6 2 () 6.62.5 93.53 (870087087)87155 (4.853.6+6.153) 649 4.6+5.4140.65140.65 1258.8 4.81.01 3.273.2764.2870.6421300 78367.87417 0.4(2.573) 178 162.5 0.1250.5 2.42+4.5843