小学二年级数学四则运算混合口算练习(2)
奥数网
2016-09-27 14:39:10
69-8-40=
5×4-12=
2×5+3=
4×4+5=
2×4-6=
4×3+8=
69-8-40=
5×4-12=
2×5+3=
4×4+5=
2×4-6=
4×3+8=