87×24= ☆308÷7=
36×57= ☆642÷3=
8.1元+2.3元=
5.6元-3.4元=
8.3元+7.5元=
24.8元+7.9元=
1.05元+12.67元=
7.45元-3.76 元=
6×8﹣24= 32÷4+12= 21﹣3÷3= 12×5=
4×5+62= 9×(13﹣8)= (9+9)÷2= 900÷3=
35﹣4×8= 32÷8﹣3= 6+8×3= 88÷2=
①700-370=
②610-480=
③340+380=
④290+480=
⑤530-360=
⑥360+240=
604×8= 746+268= ★1000-599=