问题 解答题
3×5+4=3×9+5=1×6+4=
2×8+3=4+7×2=2+6×7=
答案

(1)3×5+4,

=15+4,

=19;

(2)3×9+5,

=27+5,

=32;

(3)1×6+4,

=6+4,

=10;

(4)2×8+3,

=16+3,

=19;

(5)4+7×2,

=4+14,

=18;

(6)2+6×7,

=2+42,

=44.

单项选择题
单项选择题