问题
解答题
|
答案
(1)560÷7-45
=80-45
=35
(2)40÷8+13
=5+13
=18
(3)28×4-69
=112-69
=43
(4)(172+38)÷3
=210÷3
=70
(5)27+9×27
=(1+9)×27
=10×27
=270
(6)100-450÷5
=100-90
=10
|
(1)560÷7-45
=80-45
=35
(2)40÷8+13
=5+13
=18
(3)28×4-69
=112-69
=43
(4)(172+38)÷3
=210÷3
=70
(5)27+9×27
=(1+9)×27
=10×27
=270
(6)100-450÷5
=100-90
=10