Addition without regrouping, step by step

Two-digit addition is much easier to learn when the carrying is taken out of it first.

The question

84 + 12

84=80+4
12=10+2
80+10=90
4+2=6
90+6=96
  1. 84 + 12, written across the line — so split each one into its tens and its ones, and add like with like.
  2. The tens together: 80 + 10 = 90.
  3. The ones together: 4 + 2 = 6.
  4. Put the two parts back together: 90 + 6 = 96.

How it works.

  1. 01

    84 + 12, written across the line — so split each one into its tens and its ones, and add like with like.

  2. 02

    The tens together: 80 + 10 = 90.

  3. 03

    The ones together: 4 + 2 = 6.

  4. 04

    Put the two parts back together: 90 + 6 = 96.