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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