姓名 ______________________日期 ____________得分 ____ / 127 年级练习解比例 · 1–6解每个比例。中等替换1.16 = 8x中等替换2.5424 = 72x中等替换3.1014 = x21中等替换4.1866 = 12x中等替换5.4x = 1636中等替换6.1228 = x42百分数的增减 · 7–12求新的数量，或求变化的百分数。中等替换7.220 decreased by 75%中等替换8.60 decreased by 75%中等替换9.280 decreased by 15%中等替换10.160 increased by 40%中等替换11.440 increased by 40%中等替换12.160 decreased by 35%答案 — 7 年级练习解比例1.x = 482.x = 323.x = 154.x = 445.x = 96.x = 18百分数的增减7.558.159.23810.22411.61612.104由 Math Sheet Studio 制作 · mathsheetstudio.com — 免费可打印数学练习卷