1、暑假数学作业二：每日1道混合运算(135+75)(145)= 1024163=120-6055=1200-2018 =(135+415)5+16=(360-144)243 =240+480302 =225-10(6+13) =(1202+120)9=164-135+85=330(65-50)=1996-96274=64(12+6513) =594045(798-616) =(31540-364)7=125208(12111) =(2010-906)(65+15) =(20+12024)8=1069-769=11713+3615=377437(65+35)=(148+47)13 =594045(
2、798-616) =21(230-1924)=1996-96274 =10000-(59+66)64 =735(700-40025)=(31540-364)7=1070+282 =920-1680407=690+4752-398=148+332864-75=3602432+730=2100-94+4854=(247+18)2725=36-720(36018)=540301550=658-174+89=75+4975-44=2522+57632=7512+28035 =4832-17 30=564-182412= 57633+15=73616+2718= 902-1745=87+1685-69= 680+2115- 360=97218+3519=29+54434102 =26304- 286 39=132+6897-57= 972720-2133=45+38-16 24=500- 240+386=250+24085=84040+4040=960-72089 =520+2215+45=160+74020=
