377÷5={#blank#}1{#/blank#}

562÷4={#blank#}2{#/blank#}

①1.3－0.8=       630÷90=        6－0.37=       100+100×0=

②60×0=          2.73＋0.27=     0.75＋0.3=      5×2＋3=

③4.3÷1000=      0.69＋1.1=      300×18=        6＋6×4=

18÷2{#blank#}1{#/blank#}63÷7        600×7{#blank#}2{#/blank#}700×6   650÷5{#blank#}3{#/blank#}550÷5       632÷8{#blank#}4{#/blank#}80

89÷20={#blank#}1{#/blank#}……9

{#blank#}2{#/blank#}÷30=3……7

190÷{#blank#}3{#/blank#}=3……10

457÷50={#blank#}4{#/blank#}……{#blank#}5{#/blank#}