1) Without actual adding, find the sum: 1 + 3 + 5 + 7 + 9 + 11 a) 36 b) 32 c) 35 2) 8th square number is _____________. a) 80 b) 64 c) 60 3) What smallest number should be added to 23 to make it a square number? a) 9 b) 13 c) 2 4) 6 × 6 - 5 × 5 = _________ a) 11 b) 12 c)  10 5) The next triangular number : 36, 45, __________ a) 54 b) 55 c) 56 6) 6th triangular number is __________. a) 15 b) 28 c) 21 7) The sum of two consecutive triangular numbers is a square number. a) True b) False 8) Representation of data in the form of pictures is called _______________. a) Bargraph b) Pictograph

JOYFUL LEARNING

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