月球卫星．

45÷9＝{#blank#}1{#/blank#} 

8×9＝{#blank#}2{#/blank#} 

63÷7＝{#blank#}3{#/blank#} 

18÷2＝{#blank#}4{#/blank#} 

75+25=       808-108=        35÷5=          730-230=

72÷8         570+100=        42÷7=          8×7=

49+21=       500+6=          150+70=        84-25=

410-110=      920-240=         36+37=         72-5=

10{#blank#}1{#/blank#}3=7               42{#blank#}2{#/blank#}7=6

25{#blank#}3{#/blank#}5=30             7{#blank#}4{#/blank#}8= 56

32{#blank#}5{#/blank#}4=8                19{#blank#}6{#/blank#}9= 28

12{#blank#}7{#/blank#}8=4                5{#blank#}8{#/blank#}6=30