①30+28=
②84-56=
③27+48=
④43+17-50=
⑤92-(45-28)=
6×7=
17-9=
4×8=
2×6=
8×3+4=
36+4=
4×9=
2×2=
19+57=
3×4+9=
5×6=
18+60=
9×3=
5×5=
38-18+25=
41-2=
6×9=
8×5=
7×4=
7×5-3=
4×2= 38+50= 36-20= 88-40-30= 4×4= 5×4-4 =
42-20= 5 + 6= 32+50= 98-20= 5×3= 6×5-20 =
25+38+29=
60-7+34=
42+48-15=
72-26-13=
①5×9=
②8×7=
③76+17=
④45﹣29=
26+37=
42﹣19=
92﹣34﹣29=
29+46=
83﹣47=
24+34+29=
88=16 97=2 95=45
77=49 44= 8 99=18
5.5+4.5= 6.2-5= × = 2.4÷0.2=
+ = 3×20= ÷ = 0.44×5=