①{#blank#}1{#/blank#}×7 < 142 ②{#blank#}2{#/blank#}×6< 130 ③{#blank#}3{#/blank#}×5<215
④ 9×{#blank#}4{#/blank#}<76 ⑤ 4×{#blank#}5{#/blank#}<100 ⑥ 3×{#blank#}6{#/blank#}<119