四则混合运算
1、按照运算顺序,在下面的算式中先算的那一步下面画上横线。
45+38-50 85-42÷7 7×(6+3) 34+7×6 86-48+22 85-(5+27) = = = = = = = = = = = =
55-24-20 56÷8+23 73-(60-8) 7×8-50 3×4+22 50-28÷7 = = = = = = = = = = = = 29+8÷4 70-(80-50) 70-(20+30) 40-(80-26) 18-9
×2
= = = = =
= = = = =
2、判断(对的打√,错的打×并改正过来)
16-8×2 6+12÷2
=8×2 =18÷2
=16 ( ) =9 ( )
四则混合运算
1、按照运算顺序,在下面的算式中先算的那一步下面画上横线。
45+38-50 85-42÷7 7×(6+3) 34+7×6 86-48+22 85-(5+27) = = = = =
= = = = =
55-24-20 56÷8+23 73-(60-8) 7×8-50 3×4+22 50-= = = = =
= = = = =
29+8÷4 70-(80-50) 70-(20+30) 40-(80-26) 18-9×2
= = = = =
= = = = =
2、判断(对的打√,错的打×并改正过来)
16-8×2 6+12÷2
=8×2 =18÷2
=16 ( ) =9 ( ) (18-9)×2 = = = = 28÷7 = = (18-9)
×2 = =