5{#blank#}1{#/blank#}28÷7

7÷1{#blank#}2{#/blank#}7×1

42÷6{#blank#}3{#/blank#}24÷6

36÷6{#blank#}4{#/blank#}49÷7

6头大象摆成两行，每行同样多，每行摆{#blank#}1{#/blank#}头．

5×{#blank#}1{#/blank#}＝45

45÷{#blank#}2{#/blank#}＝{#blank#}3{#/blank#}

45÷{#blank#}4{#/blank#}＝{#blank#}5{#/blank#}

8×9=        36÷4 =         38+6=           7×4=

16÷4=       72–4=          6×4=            45+7=

32÷8=       48+12=         30÷6=           9×6=

5×7=        15÷3=           4×8=            12÷4=

26＋44＝                  42÷6＝               12÷4＝                  4×4＝

70－53＝                  9×7＝                 5×4＝                    30÷6＝

25＋34＋35＝                                100－20－30＝