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) Each piece of cardboard is 0.5 centimetres thick. If Chellamal stacks 9 pieces of cardboard on top of one another, how thick will the stack be centimetres Answer:_______________ |
| 2) Tulasi bikes 0.7 kilometres each school day. In total, how far will Steven bike over 5 school days kilometres Answer:_______________ |
| 3) Savithri bought plastic tubes that are each 0.8 metres long. If Savithri makes a line of 8 tubes by placing them end-to-end, how long will it be metres Answer:_______________ |
| 4) A sandwich shop employee Poongodi takes 4.8 minutes to make a sandwich. How long does it take her to make 3 sandwiches minutes Answer:_______________ |
| 5) Balaji placed 3 weights on a scale during science class. If each weight weighed 9.7 grams, what did the scale read grams Answer:_______________ |
| 6) Each piece of cardboard is 0.6 centimetres thick. If Mithra stacks 9 pieces of cardboard on top of one another, how thick will the stack be centimetres Answer:_______________ |
| 7) Mithra bikes 0.7 kilometres each school day. In total, how far will Steven bike over 6 school days kilometres Answer:_______________ |
| 8) Tamilselvi bought plastic tubes that are each 0.8 metres long. If Tamilselvi makes a line of 6 tubes by placing them end-to-end, how long will it be metres Answer:_______________ |
| 9) A sandwich shop employee Savithri takes 5.9 minutes to make a sandwich. How long does it take her to make 4 sandwiches minutes Answer:_______________ |
| 10) Aravindh placed 4 weights on a scale during science class. If each weight weighed 6.8 grams, what did the scale read grams Answer:_______________ |
| 1) Each piece of cardboard is 0.5 centimetres thick. If Chellamal stacks 9 pieces of cardboard on top of one another, how thick will the stack be Answer: 4.5 centimetres SOLUTION 1 : Solve: Multiply the thickness of each piece of cardboard by the number of pieces in the stack Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.5 Move the decimal point 1 place to the left in the answer. 45. → 4.5 The stack will be 4.5 centimetres thick. |
| 2) Tulasi bikes 0.7 kilometres each school day. In total, how far will Steven bike over 5 school days Answer: 3.5 kilometres SOLUTION 1 : Solve: Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.7 Move the decimal point 1 place to the left in the answer. 35. → 3.5 3.5 |
| 3) Savithri bought plastic tubes that are each 0.8 metres long. If Savithri makes a line of 8 tubes by placing them end-to-end, how long will it be Answer: 6.4 metres SOLUTION 1 : Solve: Multiply the length of each plastic tube by the number of tubes. Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.8 Move the decimal point 1 place to the left in the answer. 64. → 6.4 The line of plastic tubes will be 6.4 metres long. |
| 4) A sandwich shop employee Poongodi takes 4.8 minutes to make a sandwich. How long does it take her to make 3 sandwiches Answer: 14.4 minutes SOLUTION 1 : Solve:
Multiply the time it takes to make a sandwich by the number of sandwiches.
Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 4.8 Move the decimal point 1 place to the left in the answer. 144. → 14.4 It takes Poongodi 14.4 minutes to make 3 sandwiches. |
| 5) Balaji placed 3 weights on a scale during science class. If each weight weighed 9.7 grams, what did the scale read Answer: 29.1 grams SOLUTION 1 : Solve: Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 9.7 Move the decimal point 1 place to the left in the answer. 291. → 29.1 ans = 29.1
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| 6) Each piece of cardboard is 0.6 centimetres thick. If Mithra stacks 9 pieces of cardboard on top of one another, how thick will the stack be Answer: 5.4 centimetres SOLUTION 1 : Solve: Multiply the thickness of each piece of cardboard by the number of pieces in the stack Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.6 Move the decimal point 1 place to the left in the answer. 54. → 5.4 The stack will be 5.4 centimetres thick. |
| 7) Mithra bikes 0.7 kilometres each school day. In total, how far will Steven bike over 6 school days Answer: 4.2 kilometres SOLUTION 1 : Solve: Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.7 Move the decimal point 1 place to the left in the answer. 42. → 4.2 4.2 |
| 8) Tamilselvi bought plastic tubes that are each 0.8 metres long. If Tamilselvi makes a line of 6 tubes by placing them end-to-end, how long will it be Answer: 4.8 metres SOLUTION 1 : Solve: Multiply the length of each plastic tube by the number of tubes. Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 0.8 Move the decimal point 1 place to the left in the answer. 48. → 4.8 The line of plastic tubes will be 4.8 metres long. |
| 9) A sandwich shop employee Savithri takes 5.9 minutes to make a sandwich. How long does it take her to make 4 sandwiches Answer: 23.6 minutes SOLUTION 1 : Solve:
Multiply the time it takes to make a sandwich by the number of sandwiches.
Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 5.9 Move the decimal point 1 place to the left in the answer. 236. → 23.6 It takes Savithri 23.6 minutes to make 4 sandwiches. |
| 10) Aravindh placed 4 weights on a scale during science class. If each weight weighed 6.8 grams, what did the scale read Answer: 27.2 grams SOLUTION 1 : Solve: Multiply as you would multiply whole numbers.
Count the number of decimal places in the factors. There is 1 decimal place in 6.8 Move the decimal point 1 place to the left in the answer. 272. → 27.2 ans = 27.2
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