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1、三年级数学混合运算练习100题27 +3 X73 X6 +925 +5 X881 +3X845+8-2363 勺 X824-8+1028XX735+24-1248 +8 X940 抬 X2184 X+7690+47 X5205-35 +728+120 X897-12 X626+25 +5148+28 勺24 +3+7302100-48 X551+(304-204)4215+16 +8(247+18) X7720-(360+18)1080-5 X80(528+912) X585 X(38-34)264+30 气(174+209) X2814-(278+322)35 X9+45769- (63 +
2、7)285+(300+372)146 X(21 +3)164 +8X712X6+9755X445+28-2381 +9X8224-38+1028-4 X7235+124-312872 +8 X9240 +8 X584+7 也790+147 X5375-35 X7728+1208297-17 6576+525 抬678+128 +4324 +3+7291000-148 X5251+(304-204)4279+176 +8(107-18) X7520-(360-18)1980-5 X85364+30 抬(128+912) X6285 X(38-34)(574+239)2814-(378+322)4
3、5 X9+45869- 63 +71285+(360+372)344 X(24 +3)648X12730 X6+928 +7 X8545+98-28763 勺 X8624-68+210528 +4 X6735+24-92848 +8 X5640 +8 X9884 +4 X797+49 5295-735 +7828+728697-1234726+325 抬248+81 +9624 +3+7394100-608 X5451+(304-204)4215-1616 +8(347+16) X7520-(366+18)2080-5 X89(528+912) X4385 X(38-32)5264+3030 气(374+108) X2884-(378+322)235 X9+451769- (763 +7)958-(390+372)217 x(42+7)