A Trip to Bhopal Questions with (*) sign are open ended questions. Ms. Meenakshi and Mr. Rakesh are talking about the number of buses needed. Ms. Meenakshi: – We will need 4 buses. Mr. Rakesh: I think we need at least 5. Ms. Meenakshi:- Each bus has 50 seats. Mr. Rakesh: – Let us […]
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How Many Squares? Page 34 Measure the side of the square on dotted sheet. Draw as many rectangles as possible using 12 such squares. How many rectangles could you make? We can make 7 right angles. Which of these rectangles has the longest perimeter? Rectangles 1 and 2 have the longest perimeter. Which of these
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Playing with Numbers Exercise 3.1 1). Write all the factors of the following numbers: a). 24 b). 15 c). 21 d). 27 e). 12 f). 20 g). 18 h). 23 i). 36 Answers: a). 24 24= 1 X 24 24 = 2 X 12 24 = 3 X 8 24 = 4
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Whole Numbers Exercise 2.3 1). Which of the following will not represent zero. a). 1+0 b). 0 X 0 c). 0/2 d). (10-10)/2 Answer: a. 2). If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples. If the product of
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Whole Numbers Exercise 2.2 Examples for Practice 1). Find the sum by suitable rearrangement. a). 837 + 208 + 363 837 + 208 + 363 = (837 + 363) + 208 = 1200 + 208 = 1408 Ans: 837 + 208 + 363 = 1,408 b). 1962 + 453 + 1538 +
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Whole Numbers Exercise 2.1 1). Write the next three natural numbers after 10999. The next three natural numbers after 10999 are 11000, 11001 and 11002. 2). Write the three whole numbers occurring just before 10001. The three whole numbers occurring just before 10001 are 10000, 9999, 9998. 3). Which is
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Shapes and Angles Questions with (*) sign are open ended questions. Page 16 Now you give the answers. Is it a closed shape? Yes, it is a closed shape. Does it have 6 sides? Yes, it had 6 sides. Page 17 Is it a closed shape with 6 sides? Yes, it is a closed shape
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Long and Short Questions with (*) sign are open ended questions. Guess the distance between any two dots. How many centimetres is it? Now measure it with the help of a scale. Did you guess right? Which two dots do you think are the farthest from each other? Check your answer. The dots
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Knowing Our Numbers Problems for Practice Q 1). Estimate each of the following using a general rule. a). 730 + 998 b). 796 – 314 c). 12,901 + 2,888 d). 28.292 – 21,496 Make ten more examples of addition, subtraction and estimation of their outcome. a). 730 + 998 Estimation: 700 + 1000
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Knowing Our Numbers Exercise 1.2 1). A book exhibition was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1094, 1812, 2050 and 2751. Find the total number of tickets sold on all four days. The number of tickets
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