1) Estimate the sum: 19 + 64 = a) 70 b) 80 c) 90 d) 100 2) Estimate the sum: 47 + 25 = a) 80 b) 60 c) 70 d) 90 3) Estimate the difference of 34 and 15. a) 20 b) 40 c) 30 d) 10 4) A restaurant will serve pancakes to 25 adults and 13 children. About how many pancakes should the cook make? a) 50 b) 40 c) 30 d) 60 5) Sunil has 45 toys and Amita has 62 toys. Which is the best estimate of how many toys they have together? a) 100 b) 110 c) 120 d) 90 6) Estimate the difference. 87−48 a) 30 b) 39 c) 40 d) 49 7) Estimate the difference of 97 and 26. a) 90 b) 70 c) 71 d) 80 8) Estimate the difference. 56−48 a) 50 b) 40 c) 20 d) 10 9) Estimate the sum: 88 + 12= a) 90 b) 80 c) 10 d) 70 10) Estimate the sum: 26 + 64 = a) 50 b) 30 c) 70 d) 80

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