一、口算。
$85 - 49 =$ $3×6 =$ $58÷6 =$
$5×2 =$ $32 + 29 =$ $27÷4 =$
$65 - 28 =$ $7×8 =$ $45÷5 =$
$6×9 =$ $64 - 27 =$ $27÷3 =$
$26 + 44 =$ $5×8 =$ $55÷6 =$
$7×4 =$ $70 - 39 =$ $42÷8 =$
$4×5 =$ $87 - 59 =$ $14÷2 =$
$24 + 49 =$ $9×8 =$ $30÷4 =$
$5×6 =$ $53 + 28 =$ $48÷7 =$
$95 - 76 =$ $3×4 =$ $35÷9 =$
$85 - 49 =$ $3×6 =$ $58÷6 =$
$5×2 =$ $32 + 29 =$ $27÷4 =$
$65 - 28 =$ $7×8 =$ $45÷5 =$
$6×9 =$ $64 - 27 =$ $27÷3 =$
$26 + 44 =$ $5×8 =$ $55÷6 =$
$7×4 =$ $70 - 39 =$ $42÷8 =$
$4×5 =$ $87 - 59 =$ $14÷2 =$
$24 + 49 =$ $9×8 =$ $30÷4 =$
$5×6 =$ $53 + 28 =$ $48÷7 =$
$95 - 76 =$ $3×4 =$ $35÷9 =$
答案
36 18 9······4
10 61 6······3
37 56 9
54 37 9
70 40 9······1
28 31 5······2
20 28 7
73 72 7······2
30 81 6······6
19 12 3······8
10 61 6······3
37 56 9
54 37 9
70 40 9······1
28 31 5······2
20 28 7
73 72 7······2
30 81 6······6
19 12 3······8
二、估一估,填一填。


答案
二、3 30 4
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