0.6×0.5={#blank#}1{#/blank#}0.57-0.5={#blank#}2{#/blank#}2.4×50={#blank#}3{#/blank#}1.5×0.6={#blank#}4{#/blank#}10-3.97={#blank#}5{#/blank#}

0.24×0.2={#blank#}6{#/blank#}800×1.25={#blank#}7{#/blank#}9.6×0.01={#blank#}8{#/blank#}0.05×1.6={#blank#}9{#/blank#}2.17×0.1={#blank#}10{#/blank#}

40减去12.9与4.01的和，差是{#blank#}2{#/blank#}.

3.4-1.8=        7.3+2.7=         10.2-5=        3-1.3-1.7 =

2.5×5=         0.8×4=           0.08×100=     1.2×50 =

={#blank#}1{#/blank#}

0.34＋0.45=      7.7＋2.6=       3.6－0.8=

0.39＋0.15=      6－4.6=          0.35－0.18=

0.08＋0.92=      7.4－1.6=       3.5＋4.2＋5.5=     7.8－1.5－2.3=