1. 直接写出得数。(每题 2★)
$6 + 8×3 = $ $12 + 18÷6 = $ $6 + 17 + 20 = $
$7×5 - 8 = $ $55 - 35 + 25 = $ $52 - 20 - 6 = $
$3×6÷2 = $ $27 + 40÷8 = $ $40 - 32÷8 = $
$9 + 6×4 = $ $12÷2×3 = $ $17 - 16÷8 = $
$9×4 + 7 = $ $45÷9 + 16 = $ $36÷6÷3 = $
$67 - 4×4 = $ $63÷9 - 2 = $ $15 + 54÷6 = $

30 15 43
27 45 26
9 32 36
![img alt=092]
33 18 15
43 21 2
51 5 24

2. 计算。(每题 2★)
$32 - 4 + 26$ $16÷4×2$ $20 + 12÷4$
$36÷9 + 18$ $99 - 12 - 39$ $72÷9÷4$
$3×8÷6$ $54 - 18÷6$ $7×9 - 14$

54 8 23
22 48 2
4 51 49