口算33-3 = 40÷4 = 80 + 0 = 200×5 = 0×48 =...

2023-02-13

【题目】口算

33-3 =        40÷4 =         80 + 0 =         200×5 =

0×48 =        4×900 =        308×5 =        72 + 15 =

28÷2 =        48÷4 =         84÷7 =         67÷8 =

【答案】30, 10, 80, 1000, 0, 3600, 1540, 87, 14, 12, 12 ,8……3

【解析】