Grade 2 · Math

• 5 sessions
• About 10 minutes each

Build two-digit addition from tens and ones, then practise a few column sums at a time. No regrouping.

1. Session 1

   Build a sum

   On scrap paper, draw 2 tens sticks and 3 ones dots for 23, then 1 tens stick and 4 ones dots for 14. Combine the ones and then the tens. Say how many you have altogether and write 23 + 14 = 37. Point out what each digit in 37 represents. This is a worked example, not a test.

   Adding 2-digit numbers in columns: 2-Digit Column Addition (No Regrouping)

   Open collection

2. Session 2

   Try four together

   Open the addition worksheet and complete questions 1–4. Line up the ones and tens. Draw one of the sums before answering if it helps. Explain how you found one answer, then have the adult check those four answers with the key. Save the rest for later.

   Adding 2-digit numbers in columns: 2-Digit Column Addition (No Regrouping)

   Open collection

3. Session 3

   Practise your method

   Complete questions 5–8 on the same worksheet. Notice questions with a zero in the ones place: zero ones still holds that place in the number. Check one sum with a tens-and-ones drawing, then review your answers.

   Adding 2-digit numbers in columns: 2-Digit Column Addition (No Regrouping)

   Open collection

4. Session 4

   Try four yourself

   Complete questions 9–12, using your own drawing if needed. The adult waits until you have tried before helping. Choose one answer to explain, then check the key together. Correct any error by showing the tens and ones, not just copying the answer.

   Adding 2-digit numbers in columns: 2-Digit Column Addition (No Regrouping)

   Open collection

5. Session 5

   Make and explain

   On scrap paper, make a new two-digit addition sum where the ones add to less than ten and the tens add to less than ten. Solve it and explain it with a drawing. Ask the adult to check it. Then point to one earlier sum you can now explain clearly.