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TO, (vii), (viii), 47, 4 7, 82, + 50, + 17, +5, (ix), (x), 34, 5 5, T., 2., 36, 48, 12, 34, 4., +36, + 55, +1, 481, Edy nine, 8 9, mune 87, +1, Arrange in columns and add, (1) 15 and 24, (ii) 27 and 32, (iii) 54 and 45, 2+5, 1., PPY, 2., 57, 99, Addition of three 2-digit numbers (without carrying):, Start at 0. Take 2, Add, addends, TO, TO, TO, TO, 4 5, 2., 25, 15, 6 7, +1 2, (i) Add 5 and, of numeral, +2 3, +2, +3, +1 0, + 1, 2., + 2, 1, 48, 99, 3456, TO, TO, TO, 1 3, 4., 3., addends, 26, + 1, 2, +3 4, 5., + 5, + 2 2, 1., +3 2, +1 2, +2, + 3 0, (iii) Add 6 and, of numeral, T O, TO, 1 3, 2., +1 2, T., 4 5, +++++- ++, DI234S6, +1, +3, 1, 2., 3, +3 5, + 1 2