填上合适的数.
÷3×4=28 64÷ ×5=40 4× =36
15﹣8= ÷4 3+ =27÷3 39﹣ =45÷9
×9﹣17=46 6× +15=63 72÷8=3×
20÷ ×7=35 81÷9+ =45 64﹣ =57.
算一算.
81÷9= 8×9﹣27= 45÷5+21= 3×3×6= 4×9÷6=
36÷4÷3= 2×4×5= 63÷9×4= 3×8﹣11= 40﹣4×9=
30÷6×9= 72÷8÷3= 8×9﹣9= 6×9﹣6= 9×9﹣30=
试题篮
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