问题 解答题

220+240+260+280+300=______×______=______

147+148+149+150+151+152+153=______×______=______.

答案

(1)220+240+260+280+300

=260×5

=1300;

(2)147+148+149+150+151+152+153

=150×7

=1050.

故答案为:260,5,1300;150,7,1050.

选择题
解答题