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) Keerthi pasted a rectangular picture on a cardboard measuring 41 cm by 43 cm. cm2 Answer:_______________ |
| 2) Selvanayaki pasted a rectangular picture on a cardboard measuring 66 cm by 59 cm. cm2 Answer:_______________ |
| 3) Ponnalagu pasted a rectangular picture on a cardboard measuring 62 cm by 38 cm. cm2 Answer:_______________ |
| 4) Chellamal pasted a rectangular picture on a cardboard measuring 70 cm by 49 cm. cm2 Answer:_______________ |
| 5) Swathi pasted a rectangular picture on a cardboard measuring 48 cm by 34 cm. cm2 Answer:_______________ |
| 6) Chithra pasted a rectangular picture on a cardboard measuring 47 cm by 32 cm. cm2 Answer:_______________ |
| 7) Jeevini pasted a rectangular picture on a cardboard measuring 69 cm by 42 cm. cm2 Answer:_______________ |
| 8) Swathi pasted a rectangular picture on a cardboard measuring 66 cm by 38 cm. cm2 Answer:_______________ |
| 9) Panimalar pasted a rectangular picture on a cardboard measuring 34 cm by 31 cm. cm2 Answer:_______________ |
| 10) Thamarai pasted a rectangular picture on a cardboard measuring 61 cm by 39 cm. cm2 Answer:_______________ |
| 1) Keerthi pasted a rectangular picture on a cardboard measuring 41 cm by 43 cm. Answer: 468 cm2 SOLUTION 1 : Step 1: 41 cm x 43 cm = 1763 cm2 Step 2: 41 - 3 - 3 = 35 cm Step 3: 43 - 3 - 3 = 37 cm Step 4: 35 cm x 37 cm = 1295 cm2 Step 5: 1763 cm2 - 1295 cm2 = 468 cm2 The area of the cardboard not covered by the picture 468 cm2. |
| 2) Selvanayaki pasted a rectangular picture on a cardboard measuring 66 cm by 59 cm. Answer: 714 cm2 SOLUTION 1 : Step 1: 66 cm x 59 cm = 3894 cm2 Step 2: 66 - 3 - 3 = 60 cm Step 3: 59 - 3 - 3 = 53 cm Step 4: 60 cm x 53 cm = 3180 cm2 Step 5: 3894 cm2 - 3180 cm2 = 714 cm2 The area of the cardboard not covered by the picture 714 cm2. |
| 3) Ponnalagu pasted a rectangular picture on a cardboard measuring 62 cm by 38 cm. Answer: 564 cm2 SOLUTION 1 : Step 1: 62 cm x 38 cm = 2356 cm2 Step 2: 62 - 3 - 3 = 56 cm Step 3: 38 - 3 - 3 = 32 cm Step 4: 56 cm x 32 cm = 1792 cm2 Step 5: 2356 cm2 - 1792 cm2 = 564 cm2 The area of the cardboard not covered by the picture 564 cm2. |
| 4) Chellamal pasted a rectangular picture on a cardboard measuring 70 cm by 49 cm. Answer: 1090 cm2 SOLUTION 1 : Step 1: 70 cm x 49 cm = 3430 cm2 Step 2: 70 - 5 - 5 = 60 cm Step 3: 49 - 5 - 5 = 39 cm Step 4: 60 cm x 39 cm = 2340 cm2 Step 5: 3430 cm2 - 2340 cm2 = 1090 cm2 The area of the cardboard not covered by the picture 1090 cm2. |
| 5) Swathi pasted a rectangular picture on a cardboard measuring 48 cm by 34 cm. Answer: 312 cm2 SOLUTION 1 : Step 1: 48 cm x 34 cm = 1632 cm2 Step 2: 48 - 2 - 2 = 44 cm Step 3: 34 - 2 - 2 = 30 cm Step 4: 44 cm x 30 cm = 1320 cm2 Step 5: 1632 cm2 - 1320 cm2 = 312 cm2 The area of the cardboard not covered by the picture 312 cm2. |
| 6) Chithra pasted a rectangular picture on a cardboard measuring 47 cm by 32 cm. Answer: 568 cm2 SOLUTION 1 : Step 1: 47 cm x 32 cm = 1504 cm2 Step 2: 47 - 4 - 4 = 39 cm Step 3: 32 - 4 - 4 = 24 cm Step 4: 39 cm x 24 cm = 936 cm2 Step 5: 1504 cm2 - 936 cm2 = 568 cm2 The area of the cardboard not covered by the picture 568 cm2. |
| 7) Jeevini pasted a rectangular picture on a cardboard measuring 69 cm by 42 cm. Answer: 630 cm2 SOLUTION 1 : Step 1: 69 cm x 42 cm = 2898 cm2 Step 2: 69 - 3 - 3 = 63 cm Step 3: 42 - 3 - 3 = 36 cm Step 4: 63 cm x 36 cm = 2268 cm2 Step 5: 2898 cm2 - 2268 cm2 = 630 cm2 The area of the cardboard not covered by the picture 630 cm2. |
| 8) Swathi pasted a rectangular picture on a cardboard measuring 66 cm by 38 cm. Answer: 400 cm2 SOLUTION 1 : Step 1: 66 cm x 38 cm = 2508 cm2 Step 2: 66 - 2 - 2 = 62 cm Step 3: 38 - 2 - 2 = 34 cm Step 4: 62 cm x 34 cm = 2108 cm2 Step 5: 2508 cm2 - 2108 cm2 = 400 cm2 The area of the cardboard not covered by the picture 400 cm2. |
| 9) Panimalar pasted a rectangular picture on a cardboard measuring 34 cm by 31 cm. Answer: 354 cm2 SOLUTION 1 : Step 1: 34 cm x 31 cm = 1054 cm2 Step 2: 34 - 3 - 3 = 28 cm Step 3: 31 - 3 - 3 = 25 cm Step 4: 28 cm x 25 cm = 700 cm2 Step 5: 1054 cm2 - 700 cm2 = 354 cm2 The area of the cardboard not covered by the picture 354 cm2. |
| 10) Thamarai pasted a rectangular picture on a cardboard measuring 61 cm by 39 cm. Answer: 736 cm2 SOLUTION 1 : Step 1: 61 cm x 39 cm = 2379 cm2 Step 2: 61 - 4 - 4 = 53 cm Step 3: 39 - 4 - 4 = 31 cm Step 4: 53 cm x 31 cm = 1643 cm2 Step 5: 2379 cm2 - 1643 cm2 = 736 cm2 The area of the cardboard not covered by the picture 736 cm2. |