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题型:填空题 题类:常考题 难易度:普通
表内乘法2120 10
1+3+5+7+9+11+13=×=
7×1 = 6 × 2 = 3×8 = 2×6 =
5×3 = 9 × 3 = 2×7 = 5 × 4 =
8×2 = 4× 8 = 3 ×9 = 7 × 3 =
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三{#blank#}4{#/blank#}十五 {#blank#}5{#/blank#}九四十五 {#blank#}6{#/blank#}二十八
⑴ ⑵
⑶ ⑷
⑸3(2y-3)+25=y-6(y+1) ⑹
⑺若3.5×[6.8-(1.6+Δ÷0.9)]÷8.4=0.5, 求Δ的值.
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