Written Instructions:
For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
| 1) (29r - 11n) from (-9r + 21n) - r n Answer:_______________ |
| 2) (27j - 8x) from (-9j + 22x) - j x Answer:_______________ |
| 3) (15c - 6m) from (-3c + 15m) - ___c ___m Answer:_______________ |
| 4) (22q - 3f) from (-7q + 14f) - q f Answer:_______________ |
| 5) (16u - 2o) from (-3u + 13o) - u o Answer:_______________ |
| 6) (29m - 10w) from (-2m + 25w) - ___m w Answer:_______________ |
| 7) (18n - 11k) from (-8n + 14k) - n k Answer:_______________ |
| 8) (16e - 11f) from (-5e + 18f) - e f Answer:_______________ |
| 9) (20z - 11g) from (-5z + 16g) - z g Answer:_______________ |
| 10) (26r - 2s) from (-3r + 14s) - r s Answer:_______________ |
| 1) (29k - 11p) from (-9k + 21p) - Answer: 38k Answer: 32p SOLUTION 1 : (-9k + 21p) - (29k - 11p) = - 9k + 21p - 29k + 11p = (- 9k - 29k) + (21p + 11p) = (- 9 - 29)k + (21 + 11)p = (- 38)k + (32)p = - 38k + 32p
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| 2) (27t - 8s) from (-9t + 22s) - Answer: 36t Answer: 30s SOLUTION 1 : (-9t + 22s) - (27t - 8s) = - 9t + 22s - 27t + 8s = (- 9t - 27t) + (22s + 8s) = (- 9 - 27)t + (22 + 8)s = (- 36)t + (30)s = - 36t + 30s
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| 3) (15c - 6k) from (-3c + 15k) - Answer: 18c Answer: 21k SOLUTION 1 : (-3c + 15k) - (15c - 6k) = - 3c + 15k - 15c + 6k = (- 3c - 15c) + (15k + 6k) = (- 3 - 15)c + (15 + 6)k = (- 18)c + (21)k = - 18c + 21k
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| 4) (22q - 3a) from (-7q + 14a) - Answer: 29q Answer: 17a SOLUTION 1 : (-7q + 14a) - (22q - 3a) = - 7q + 14a - 22q + 3a = (- 7q - 22q) + (14a + 3a) = (- 7 - 22)q + (14 + 3)a = (- 29)q + (17)a = - 29q + 17a
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| 5) (16y - 2x) from (-3y + 13x) - Answer: 19y Answer: 15x SOLUTION 1 : (-3y + 13x) - (16y - 2x) = - 3y + 13x - 16y + 2x = (- 3y - 16y) + (13x + 2x) = (- 3 - 16)y + (13 + 2)x = (- 19)y + (15)x = - 19y + 15x
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| 6) (29s - 10d) from (-2s + 25d) - Answer: 31s Answer: 35d SOLUTION 1 : (-2s + 25d) - (29s - 10d) = - 2s + 25d - 29s + 10d = (- 2s - 29s) + (25d + 10d) = (- 2 - 29)s + (25 + 10)d = (- 31)s + (35)d = - 31s + 35d
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| 7) (18n - 11p) from (-8n + 14p) - Answer: 26n Answer: 25p SOLUTION 1 : (-8n + 14p) - (18n - 11p) = - 8n + 14p - 18n + 11p = (- 8n - 18n) + (14p + 11p) = (- 8 - 18)n + (14 + 11)p = (- 26)n + (25)p = - 26n + 25p
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| 8) (16m - 11q) from (-5m + 18q) - Answer: 21m Answer: 29q SOLUTION 1 : (-5m + 18q) - (16m - 11q) = - 5m + 18q - 16m + 11q = (- 5m - 16m) + (18q + 11q) = (- 5 - 16)m + (18 + 11)q = (- 21)m + (29)q = - 21m + 29q
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| 9) (20r - 11z) from (-5r + 16z) - Answer: 25r Answer: 27z SOLUTION 1 : (-5r + 16z) - (20r - 11z) = - 5r + 16z - 20r + 11z = (- 5r - 20r) + (16z + 11z) = (- 5 - 20)r + (16 + 11)z = (- 25)r + (27)z = - 25r + 27z
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| 10) (26n - 2p) from (-3n + 14p) - Answer: 29n Answer: 16p SOLUTION 1 : (-3n + 14p) - (26n - 2p) = - 3n + 14p - 26n + 2p = (- 3n - 26n) + (14p + 2p) = (- 3 - 26)n + (14 + 2)p = (- 29)n + (16)p = - 29n + 16p
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