✏️ How to Teach Column Addition (Carrying Made Simple)

Column addition is the first “grown-up” written method kids meet — usually in Grade 2. The method is simple; the understanding behind the little carried 1 is where kids need help.

Step 1: line up the ones

Write 47 + 25 with the 7 above the 5. Everything in column addition flows from digits sitting in the right place-value column. Grid paper (or a grid-lined screen) helps enormously.

Step 2: always start with the ones

Kids read left to right, so their instinct is to add the tens first. Train the habit: the ones column always goes first. 7 + 5 = 12.

Step 3: the carry is a ten in disguise

12 is “2 ones and 1 ten” — write the 2, and move the ten where tens live: a small 1 on top of the tens column. Saying “twelve is ten and two” out loud each time builds the understanding, not just the ritual.

Step 4: add the tens (don't forget the visitor)

4 + 2 + the carried 1 = 7. Answer: 72. The classic error is ignoring the carry — which is why practice that shows the carry appearing helps so much.

Practice it like paper

Math for Kids has a whole ✏️ Column Addition world: sums appear on a paper-style board, your child writes each digit in sequence, and the carry bubble pops in exactly where the teacher would write it. Wrong digit? The app shows the fix immediately, column by column.

What age is column addition for?

Typically age 7–8 (Grade 2), after your child can add within 20 confidently.

My child forgets the carry — normal?

Completely. It fades with visual practice where the carry is shown, not just marked wrong.