姓名 ______________________日期 ____________得分 ____ / 12代数式求值练习代数式求值 · 1–12按给定的值计算每个代数式。困难替换1.2x2 + 1, x = 3困难替换2.3x2 + 8, x = −3困难替换3.4x2 − 11, x = 1困难替换4.2x2 + 6, x = 2困难替换5.3x2 − 2, x = 3困难替换6.x + y4, x = 1, y = 7困难替换7.2x2 + 11, x = −1困难替换8.2x2 − 10, x = −5困难替换9.x + y5, x = 18, y = 7困难替换10.x + y2, x = 4, y = 2困难替换11.x + y3, x = 5, y = 1困难替换12.2x2 − 1, x = 5答案 — 代数式求值练习代数式求值1.192.353.−74.145.256.27.138.409.510.311.212.49由 Math Sheet Studio 制作 · mathsheetstudio.com — 免费可打印数学练习卷