4×7＝{#blank#}1{#/blank#} 

56÷8＝{#blank#}2{#/blank#} 

49＋7＝{#blank#}3{#/blank#} 

42÷7＝{#blank#}4{#/blank#} 

80-60=         50 +20=        85-80=      73 +20=

83-9=            47+8=          56-34 =       23+55=

3×7=             49÷7=        4×8=         32÷4=

5×9=              18÷9=         6×4 =        12÷2=

8×7+8=            3×7+26=       6×7-25 =     48÷8+45=

5×8=        18÷2=         4÷4=           12÷3=

49÷7=       10÷5=         54-8=          56÷8=

36÷9=       54÷9=         8×5=          6÷2=