一个不为0的数乘1.001，积一定比原来的数大．

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3.5×16={#blank#}1{#/blank#}      0.35×1.6={#blank#}2{#/blank#}     3.5×1.6={#blank#}3{#/blank#}

45×1.7={#blank#}1{#/blank#}    0.45×1.7={#blank#}2{#/blank#}    7.65÷0.45={#blank#}3{#/blank#}

360×3={#blank#}1{#/blank#}           36×30={#blank#}2{#/blank#}

3600×3={#blank#}3{#/blank#}         360×30={#blank#}4{#/blank#}

1.29×0.9{#blank#}1{#/blank#}1.29      4.9×1{#blank#}2{#/blank#}4.9          3.5×0.64{#blank#}3{#/blank#}0.35×6.4

5.9×0.99{#blank#}4{#/blank#}5.9       1.03×0.76{#blank#}5{#/blank#}0.76      6.5×0.75{#blank#}6{#/blank#}6.5×7.5