小学数学二年级混合运算规则+同步练习题运算规则一在没有括号的算式里,只有加减法或者只有乘除法,都要从左往右按顺序计算。运算规则二在没有括号的算式里,如果有乘、除法,又有加、减法,要先算乘、除法,后算加、减法。运算规则三算式里有括号的,要先算括号里面的。计算混合运算时,首先确定好运算顺序(明确利用了那条运算规则);移动时,不要颠倒数字;计算时,做到正确无误.混合运算练习题79-(46+32)= 88-(38+26)=69-(39-23)= (2+7)×8=84-(27+16)= (58-34)÷8=4+(27-16)= 99+(25-24)=6×(2+6)= 3×(9÷3)=93-(4×6)= 85-8×7=4×6+7= 20÷4+5=6×8+5= 77-76+32=61-38+26= 10+5×4=77-5×4= (62-38)÷4=79+19-16= 18-36+27=73-(23+4)= 93-(39-23)=71-(25-24)= 87-(27+16)=84-(25+16)= 4+(25-1)=(76-22)÷9= 25-5×4=88+(25-24)= 55-(56-22)=61-(28+26)= 68-(28-22)=40-(42-28)= 58+18-16=85-(25+16)= 82-(28-22)=82-22+84= 22-(28-22)=88-(25-24)= 88-86+22=6×(5+4)= 76+72÷8=(100-93)×8= 38-(49-21)=42÷(1+6)= 77-(34+32)=63-(38-26)= 79+19-36=80-(22+28)= 22+(22+36)=82-(28-22)= 88+(28-15)=(42+30)÷8= 6×8+6=6+8×4= (6+2)×7=(40-28)÷6= 5×3+9=9×8+30= 8×7+30=6×8+6= (66-50)÷2=36÷(2+4)= 38-36+27=84-27+16= 99+(25-24)=(9+27)÷6= 93-23+94=69-(39-23)= 4+27-16=93-89+94= 9×(39-23)=73-(23+4)= 93-(39-23)=72÷(32-24)= 99-(62-24)=71-(72-24)= 81÷9×6=30+(33-29)= 73-23-4=81÷(39-30)= (66-50)÷2=36÷(2+4)= 38-36+27=4+27-16= 72+23-28=64+8×2= 69-(39-23)=78-(36+27)= 84-(27+16)=80-(19+42)= (21+15)÷9=64+8×2= (39-30)×6=(79-23)÷8= (4+5)×6=81÷9×6= 54+9×2=8×7-55= 90-2×9=56-1×6= (85-31)+59=64÷(24-16)= 48-24÷3=12÷4+75= 7×5+18=6×6+27= 23+6×8=(33+49)-68= 80-(19+42)=(30+15)÷9= 64+4×6=81÷9×7= (35-30)×6=(79-7)÷8= (4+5)×6=81+9×7= 67+7×2=8×8-55= 90-5×9=56-4×6= 46+4×4=31-3×2= 4×7+46=53-1×9= 68+2×8=2×9+63= 6×8-29=6×3+6×7= 80-(19+42)=(21+15)÷9= 64+8×2=