吴志东
幼苗
共回答了18个问题采纳率:83.3% 举报
13×10=130, 210×4=840, 202÷2=101, 0×2=0,
30×40=1200, 0÷9=0, 21÷7=3, 45×2=90,
7×80=560, 0×67=0, 20×5=100, 20×40=800,
700÷7=100, 560÷8=70, 51÷3=17, 240÷4=60,
300÷2=150, 13×3=39, 900×8=7200, 640÷8=80,
985-409=576, 192+298=490, 706-203=503, 500-270=230,
16+4÷4=17, 13+7×3=34, 6×8+20=68, 78÷8×0=0,
5
8 -
1
8 =
1
2 ,
1
6 +
2
6 =
1
2 , 1-
1
5 =
4
5 ,
3
7 +
4
7 =1.
1年前
2