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) Mithra pasted a rectangular picture on a cardboard measuring 68 cm by 55 cm. cm2 Answer:_______________ |
| 2) Ovini pasted a rectangular picture on a cardboard measuring 53 cm by 73 cm. cm2 Answer:_______________ |
| 3) Ponnalagu pasted a rectangular picture on a cardboard measuring 55 cm by 33 cm. cm2 Answer:_______________ |
| 4) Tamilselvi pasted a rectangular picture on a cardboard measuring 31 cm by 53 cm. cm2 Answer:_______________ |
| 5) Parveen pasted a rectangular picture on a cardboard measuring 31 cm by 76 cm. cm2 Answer:_______________ |
| 6) Parveen pasted a rectangular picture on a cardboard measuring 44 cm by 56 cm. cm2 Answer:_______________ |
| 7) Tulasi pasted a rectangular picture on a cardboard measuring 50 cm by 50 cm. cm2 Answer:_______________ |
| 8) Chellamal pasted a rectangular picture on a cardboard measuring 58 cm by 69 cm. cm2 Answer:_______________ |
| 9) Haritha pasted a rectangular picture on a cardboard measuring 51 cm by 31 cm. cm2 Answer:_______________ |
| 10) Panimalar pasted a rectangular picture on a cardboard measuring 54 cm by 67 cm. cm2 Answer:_______________ |
| 1) Mithra pasted a rectangular picture on a cardboard measuring 68 cm by 55 cm. Answer: 1130 cm2 SOLUTION 1 : Step 1: 68 cm x 55 cm = 3740 cm2 Step 2: 68 - 5 - 5 = 58 cm Step 3: 55 - 5 - 5 = 45 cm Step 4: 58 cm x 45 cm = 2610 cm2 Step 5: 3740 cm2 - 2610 cm2 = 1130 cm2 The area of the cardboard not covered by the picture 1130 cm2. |
| 2) Ovini pasted a rectangular picture on a cardboard measuring 53 cm by 73 cm. Answer: 488 cm2 SOLUTION 1 : Step 1: 53 cm x 73 cm = 3869 cm2 Step 2: 53 - 2 - 2 = 49 cm Step 3: 73 - 2 - 2 = 69 cm Step 4: 49 cm x 69 cm = 3381 cm2 Step 5: 3869 cm2 - 3381 cm2 = 488 cm2 The area of the cardboard not covered by the picture 488 cm2. |
| 3) Ponnalagu pasted a rectangular picture on a cardboard measuring 55 cm by 33 cm. Answer: 780 cm2 SOLUTION 1 : Step 1: 55 cm x 33 cm = 1815 cm2 Step 2: 55 - 5 - 5 = 45 cm Step 3: 33 - 5 - 5 = 23 cm Step 4: 45 cm x 23 cm = 1035 cm2 Step 5: 1815 cm2 - 1035 cm2 = 780 cm2 The area of the cardboard not covered by the picture 780 cm2. |
| 4) Tamilselvi pasted a rectangular picture on a cardboard measuring 31 cm by 53 cm. Answer: 740 cm2 SOLUTION 1 : Step 1: 31 cm x 53 cm = 1643 cm2 Step 2: 31 - 5 - 5 = 21 cm Step 3: 53 - 5 - 5 = 43 cm Step 4: 21 cm x 43 cm = 903 cm2 Step 5: 1643 cm2 - 903 cm2 = 740 cm2 The area of the cardboard not covered by the picture 740 cm2. |
| 5) Parveen pasted a rectangular picture on a cardboard measuring 31 cm by 76 cm. Answer: 970 cm2 SOLUTION 1 : Step 1: 31 cm x 76 cm = 2356 cm2 Step 2: 31 - 5 - 5 = 21 cm Step 3: 76 - 5 - 5 = 66 cm Step 4: 21 cm x 66 cm = 1386 cm2 Step 5: 2356 cm2 - 1386 cm2 = 970 cm2 The area of the cardboard not covered by the picture 970 cm2. |
| 6) Parveen pasted a rectangular picture on a cardboard measuring 44 cm by 56 cm. Answer: 564 cm2 SOLUTION 1 : Step 1: 44 cm x 56 cm = 2464 cm2 Step 2: 44 - 3 - 3 = 38 cm Step 3: 56 - 3 - 3 = 50 cm Step 4: 38 cm x 50 cm = 1900 cm2 Step 5: 2464 cm2 - 1900 cm2 = 564 cm2 The area of the cardboard not covered by the picture 564 cm2. |
| 7) Tulasi pasted a rectangular picture on a cardboard measuring 50 cm by 50 cm. Answer: 564 cm2 SOLUTION 1 : Step 1: 50 cm x 50 cm = 2500 cm2 Step 2: 50 - 3 - 3 = 44 cm Step 3: 50 - 3 - 3 = 44 cm Step 4: 44 cm x 44 cm = 1936 cm2 Step 5: 2500 cm2 - 1936 cm2 = 564 cm2 The area of the cardboard not covered by the picture 564 cm2. |
| 8) Chellamal pasted a rectangular picture on a cardboard measuring 58 cm by 69 cm. Answer: 492 cm2 SOLUTION 1 : Step 1: 58 cm x 69 cm = 4002 cm2 Step 2: 58 - 2 - 2 = 54 cm Step 3: 69 - 2 - 2 = 65 cm Step 4: 54 cm x 65 cm = 3510 cm2 Step 5: 4002 cm2 - 3510 cm2 = 492 cm2 The area of the cardboard not covered by the picture 492 cm2. |
| 9) Haritha pasted a rectangular picture on a cardboard measuring 51 cm by 31 cm. Answer: 720 cm2 SOLUTION 1 : Step 1: 51 cm x 31 cm = 1581 cm2 Step 2: 51 - 5 - 5 = 41 cm Step 3: 31 - 5 - 5 = 21 cm Step 4: 41 cm x 21 cm = 861 cm2 Step 5: 1581 cm2 - 861 cm2 = 720 cm2 The area of the cardboard not covered by the picture 720 cm2. |
| 10) Panimalar pasted a rectangular picture on a cardboard measuring 54 cm by 67 cm. Answer: 1110 cm2 SOLUTION 1 : Step 1: 54 cm x 67 cm = 3618 cm2 Step 2: 54 - 5 - 5 = 44 cm Step 3: 67 - 5 - 5 = 57 cm Step 4: 44 cm x 57 cm = 2508 cm2 Step 5: 3618 cm2 - 2508 cm2 = 1110 cm2 The area of the cardboard not covered by the picture 1110 cm2. |