Mathematics

Grade 2 maths: regrouping and times tables

An AR classroom game for Grade 2. Learners can aim with their hands at the camera or play by tapping the screen.

This set has 6 questions in an interactive multiple choice activity.

Curriculum indicatorค 1.1 ป.2/4

Play Host a classroom

A look before you play

Sample questions

A few real prompts from the game to help you choose an activity for your class.

01
36 + 27 = ?
- 63
- 73
- 53
Read the explanation
Six plus seven is thirteen, carry one; three plus two plus one makes six.
02
5 × 8 = ?
- 35
- 40
- 45
Read the explanation
Five times eight is forty - count in fives eight times, or use eight times five, which is the same.
03
74 - 39 = ?
- 45
- 41
- 35
Read the explanation
Fourteen take away nine is five; six take away three is three.

Before you play

Game teaching guide

What children will practise

Review two-digit addition and subtraction with carrying and borrowing (indicator ค 1.1 ป.2/4), the 4 and 5 times tables, and spotting odd numbers, as a readiness check before mixed operations.

What's in the worksheet

6 multiple-choice questions - 36 + 27 = ? with a carry, answer 63 - 74 - 39 = ? with borrowing, answer 35 - 100 - 55 = ? answer 45 - 5 × 8 = 40 and 4 × 7 = 28 - Which is odd: 46, 47 or 48? 47

How to use it in class

Use as a pre-test at the start of a new unit or a monthly review game, about 8 minutes. Solo mode shows who is stuck where. - 74 - 39 and 100 - 55 take longest; allow time for working on paper - After 100 - 55, have pupils check backwards: does 45 + 55 make 100? - Play it linked to the class to record results in the mark book, then use the per-question view to group pupils for reteaching

Common sticking points

- Choosing 45 for 74 - 39 by taking the smaller ones digit from the larger (9 - 4 = 5) instead of borrowing. Exchange a ten with base-ten blocks - Choosing 55 or 35 for 100 - 55, because borrowing across two zeros is hard. Count on from 55 to 100 instead - Choosing 53 for 36 + 27 by forgetting the carried ten