1) 55 -23 a) answer: 63 b) answer: 11 c) answer: 23 d) answer: 32 2) 89 -26 a) answer: 11 b) answer: 21 c) answer: 63 d) answer: 45 3) 13 +54 a) answer: 21 b) answer: 67 c) answer: 32 d) answer: 45 4) 23 +22 a) answer: 45 b) answer: 66 c) answer: 67 d) answer: 98 5) 45 -13 a) answer: 32 b) answer: 67 c) answer: 12 d) answer: 45 6) 21 -10 a) answer: 21 b) answer: 32 c) answer: 11 d) answer: 63 7) 33 +33 a) answer: 66 b) answer: 11 c) answer: 67 d) answer: 63 8) 52 -31 a) answer: 63 b) answer: 21 c) answer: 67 d) answer: 32 9) 64 -22 a) answer: 98 b) answer: 42 c) answer: 63 d) answer: 82 10) 72 +26 a) answer: 11 b) answer: 98 c) answer: 12 d) answer: 45

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