1. Find the clues
Notice the numbers and words like more, less, before, after, all and some.
Class 2 Maths · Chapter 1 · Topic 1-2
Use Logical Reasoning
Read the clues, think about what must be true, and explain why. A good maths thinker checks every clue before choosing an answer.
28CHALLENGES
A simple thinking routine
How to reason it out
Slow down, use the clues, then check.
2. Try possibilities
Use counters, a number line, a picture, or a short list. Cross out choices that break a clue.
3. Check every clue
Test your answer in the story. It is correct only when it fits all the clues.
Let’s reason together
Which number is Mia thinking of?
It is greater than 30, less than 40, and has 5 ones. The tens digit must be 3. The ones digit must be 5. So the number is 35.
greater than 30less than 405 ones30 + 5 = 35
Think · choose · explain
Practice: 28 reasoning challenges
Check each answer to reveal its short solution.
Your thinking score is ready when you are!
Try all 28 questions. You can change an answer and check it again.