试题 试卷
题型:填空题 题类:常考题 难易度:容易
用8的乘法口诀求商1969 10
口诀:
想:八四十八,商是.
想:六四十八,商是.
8×8={#blank#}1{#/blank#} 口诀:{#blank#}2{#/blank#}
{#blank#}1{#/blank#}×4<29 34>5×{#blank#}2{#/blank#} 7×{#blank#}3{#/blank#}<30
{#blank#}4{#/blank#}×8<56 60>{#blank#}5{#/blank#}×9 {#blank#}6{#/blank#}×6<38
7×1 = 6 × 2 = 3×8 = 2×6 =
5×3 = 9 × 3 = 2×7 = 5 × 4 =
8×2 = 4× 8 = 3 ×9 = 7 × 3 =
3×7= 6×7= 4×4= 2×5=
7×7= 8×4= 4×1= 3×6=
9×9= 2×3= 6×5= 7×3=
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