1) 255 -123 a) answer: 163 b) answer: 311 c) answer: 432 d) answer: 132 2) 689 -526 a) answer: 311 b) answer: 121 c) answer: 163 d) answer: 745 3) 413 +254 a) answer: 121 b) answer: 667 c) answer: 432 d) answer: 745 4) 523 +222 a) answer: 745 b) answer: 466 c) answer: 667 d) answer: 698 5) 745 -313 a) answer: 432 b) answer: 667 c) answer: 402 d) answer: 745 6) 821 -510 a) answer: 121 b) answer: 132 c) answer: 311 d) answer: 163 7) 233 +233 a) answer: 466 b) answer: 311 c) answer: 667 d) answer: 163 8) 952 -831 a) answer: 163 b) answer: 121 c) answer: 667 d) answer: 132 9) 664 -262 a) answer: 698 b) answer: 402 c) answer: 163 d) answer: 667 10) 372 +326 a) answer: 311 b) answer: 698 c) answer: 402 d) answer: 745

Addition and Subtraction (no regrouping)

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