1>{#blank#}1{#/blank#}>0.8     0.5>{#blank#}2{#/blank#}>0.3

2.83>{#blank#}3{#/blank#}>2.5    2.8<{#blank#}4{#/blank#}<3

54>{#blank#}5{#/blank#}>50   14>{#blank#}6{#/blank#}>13

5>{#blank#}7{#/blank#}>4.5   37<{#blank#}8{#/blank#}<37.2

0.2×3.4=      2.4÷0.08=

3.7÷0.1=      10.8-7=

640÷40=       0÷4.2=

1÷0.25=       3.72+4.28=

0.45÷5=       50×0.2=

4.6＋2.4=       7.5－5=         0.6+0.2=        2.5×0.4=

9.2－1.2=       0.8×0.4=        4×0.2=          4.2+0.1=

0.72+8=        0.3×0.3=        0.12×0.4=       0.4×100=