求五年级分数递等式计算题100道!

日期:2013-07-30 16:29:27 人气:1

求五年级分数递等式计算题100道!

(45-17)+(9-3)=28+6=34, (45-17)+(9-6)=28+3=31, (45-18)+(9-3)=27+6=33 (45-18)+(9-6)=27+3=30, (45-27)+(9-3)=18+6=24, (45-27)+(9-6)=18+3=21 (45-28)+(9-3)=17+6=23, (45-28)+(9-6)=17+3=20, (46-17)+(8-3)=29+5=34 (46-17)+(8-5)=29+3=32, (46-19)+(8-3)=27+5=32,
    A+
热门评论