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) Solve the expressions, add: 21Y - 28K, 10K - 7Y + 15 Y - K
Answer:_______________ |
| 2) Solve the expressions, add: 23N - 15U, 5U - 9N + 16 N - U
Answer:_______________ |
| 3) Solve the expressions, add: 21S - 19V, 5V - 8S + 5 S - V
Answer:_______________ |
| 4) Solve the expressions, add: 22F - 14Q, 7Q - 8F + 9 F - Q
Answer:_______________ |
| 5) Solve the expressions, add: 21M - 20D, 11D - 9M + 18 ___M - D
Answer:_______________ |
| 6) Solve the expressions, add: 11I - 26X, 11X - 3I + 15 I - X
Answer:_______________ |
| 7) Solve the expressions, add: 18B - 17E, 9E - 7B + 13 B - E
Answer:_______________ |
| 8) Solve the expressions, add: 12D - 24J, 10J - 3D + 21 D - J
Answer:_______________ |
| 9) Solve the expressions, add: 25G - 22E, 7E - 3G + 5 G - E
Answer:_______________ |
| 10) Solve the expressions, add: 13O - 13R, 2R - 9O + 12 O - R
Answer:_______________ |
| 1) Solve the expressions, add: 21H - 28M, 10M - 7H + 15 Answer: 14H - Answer: 18M Answer: 15 SOLUTION 1 : (21H -28M) + (10M -7H + 15) = 21H -28M + 10M -7H + 15 = (21H -7H) + (-28M + 10M) + 15 = (21- 7)H + (-28 + 10)M + 15 = 14H - 18M + 15 |
| 2) Solve the expressions, add: 23I - 15G, 5G - 9I + 16 Answer: 14I - Answer: 10G Answer: 16 SOLUTION 1 : (23I -15G) + (5G -9I + 16) = 23I -15G + 5G -9I + 16 = (23I -9I) + (-15G + 5G) + 16 = (23- 9)I + (-15 + 5)G + 16 = 14I - 10G + 16 |
| 3) Solve the expressions, add: 21S - 19W, 5W - 8S + 5 Answer: 13S - Answer: 14W Answer: 5 SOLUTION 1 : (21S -19W) + (5W -8S + 5) = 21S -19W + 5W -8S + 5 = (21S -8S) + (-19W + 5W) + 5 = (21- 8)S + (-19 + 5)W + 5 = 13S - 14W + 5 |
| 4) Solve the expressions, add: 22J - 14H, 7H - 8J + 9 Answer: 14J - Answer: 7H Answer: 9 SOLUTION 1 : (22J -14H) + (7H -8J + 9) = 22J -14H + 7H -8J + 9 = (22J -8J) + (-14H + 7H) + 9 = (22- 8)J + (-14 + 7)H + 9 = 14J - 7H + 9 |
| 5) Solve the expressions, add: 21H - 20C, 11C - 9H + 18 Answer: 12H - Answer: 9C Answer: 18 SOLUTION 1 : (21H -20C) + (11C -9H + 18) = 21H -20C + 11C -9H + 18 = (21H -9H) + (-20C + 11C) + 18 = (21- 9)H + (-20 + 11)C + 18 = 12H - 9C + 18 |
| 6) Solve the expressions, add: 11S - 26Y, 11Y - 3S + 15 Answer: 8S - Answer: 15Y Answer: 15 SOLUTION 1 : (11S -26Y) + (11Y -3S + 15) = 11S -26Y + 11Y -3S + 15 = (11S -3S) + (-26Y + 11Y) + 15 = (11- 3)S + (-26 + 11)Y + 15 = 8S - 15Y + 15 |
| 7) Solve the expressions, add: 18Z - 17N, 9N - 7Z + 13 Answer: 11Z - Answer: 8N Answer: 13 SOLUTION 1 : (18Z -17N) + (9N -7Z + 13) = 18Z -17N + 9N -7Z + 13 = (18Z -7Z) + (-17N + 9N) + 13 = (18- 7)Z + (-17 + 9)N + 13 = 11Z - 8N + 13 |
| 8) Solve the expressions, add: 12M - 24Y, 10Y - 3M + 21 Answer: 9M - Answer: 14Y Answer: 21 SOLUTION 1 : (12M -24Y) + (10Y -3M + 21) = 12M -24Y + 10Y -3M + 21 = (12M -3M) + (-24Y + 10Y) + 21 = (12- 3)M + (-24 + 10)Y + 21 = 9M - 14Y + 21 |
| 9) Solve the expressions, add: 25T - 22G, 7G - 3T + 5 Answer: 22T - Answer: 15G Answer: 5 SOLUTION 1 : (25T -22G) + (7G -3T + 5) = 25T -22G + 7G -3T + 5 = (25T -3T) + (-22G + 7G) + 5 = (25- 3)T + (-22 + 7)G + 5 = 22T - 15G + 5 |
| 10) Solve the expressions, add: 13Q - 13O, 2O - 9Q + 12 Answer: 4Q - Answer: 11O Answer: 12 SOLUTION 1 : (13Q -13O) + (2O -9Q + 12) = 13Q -13O + 2O -9Q + 12 = (13Q -9Q) + (-13O + 2O) + 12 = (13- 9)Q + (-13 + 2)O + 12 = 4Q - 11O + 12 |