Key Idea1 of 3
Carrying Twice
Sometimes you carry from ones to tens AND from tens to hundreds. 478 + 356: ones 8 + 6 = 14 (write 4, carry 1), tens 7 + 5 + 1 = 13 (write 3, carry 1), hundreds 4 + 3 + 1 = 8. Answer: 834.
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Mathematics — Multi-Digit Addition with Regrouping
Sometimes you carry from ones to tens AND from tens to hundreds. 478 + 356: ones 8 + 6 = 14 (write 4, carry 1), tens 7 + 5 + 1 = 13 (write 3, carry 1), hundreds 4 + 3 + 1 = 8. Answer: 834.