Final Answer:
1) 9 + 4f − 7z, with f = 6, z = 5 → 9 + 4(6) − 7(5) = 9 + 24 − 35 = −2
2) 8(9d + 6) − 4b, with d = 8, b = 3 → 8(72 + 6) − 12 = 8(78) − 12 = 624 − 12 = 612
3) −3w + 2(8x − 9), with x = 5, w = 7 → −21 + 2(40 − 9) = −21 + 2(31) = −21 + 62 = 41
4) −k/8 − 8h, with k = 24, h = 7 → −24/8 − 56 = −3 − 56 = −59
5) 7b + 4z, with b = 6, z = 7 → 42 + 28 = 70
6) −9n + 5 − 3x − 6, with n = 9, x = 2 → −81 + 5 − 6 − 6 = −88
7) 21/x − 2s, with x = 7, s = 9 → 3 − 18 = −15
8) −3(−6n − 4s), with s = 7, n = 9 → −3(−54 − 28) = −3(−82) = 246
9) 7(4r + 6k), with r = 9, k = 2 → 7(36 + 12) = 7(48) = 336
10) 5k + 4x + 8 + 9, with k = 9, x = 3 → 45 + 12 + 17 = 74
Parent Tip: Review the logic above to help your child master the concept of pre algebra evaluating expressions worksheet.
