1) 47 + 32 rounded is a) 80 b) 90 c) 97 d) 79 2) 65 + 29 rounded is a) 110 b) 90 c) 100 d) 94 3) 54 + 41 rounded is a) 80 b) 90 c) 95 d) 92 4) 73 + 28 rounded is a) 90 b) 100 c) 110 d) 120 5) 86 + 45 rounded is a) 130 b) 140 c) 131 d) 141 6) 32 + 19 rounded is a) 40 b) 51 c) 50 d) 41 7) 48 + 56 rounded is a) 90 b) 104 c) 110 d) 94 8) 91 + 34 rounded is a) 100 b) 110 c) 120 d) 125 9) 77 + 82 rounded is a) 145 b) 160 c) 159 d) 165 10) 63 + 37 rounded is a) 99 b) 100 c) 110 d) 119

Estimating Sums: Two-Digit Numbers

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