Purpose
In this activity we use a 1-100 grid to identify multiples of single digit numbers. In particular we are looking for patterns and how they could be used to identify multiples.
Achievement Objectives
NA3-2: Know basic multiplication and division facts.
Specific Learning Outcomes
- Identify multiples of single digit numbers.
Required Resource Materials
- Large 1-100 grid
- Smaller grids for students
Activity
- Display a 1-100 grid (flip board or large on board).
- Circle the first few even numbers. Ask for suggestions for the next number to be circled. Talk about missing a number each time, adding two each time, multiples of two. Ask students to identify patterns within the grid (vertical lines). Complete the grid.
- Discuss, how can we tell what numbers are even numbers/multiples of two? (They have an even number as their last digit).
- Students could try with different numbers, multiples of three/four/five on their own grids. Possibly create a set of ‘multiples grids’ with all the multiples from 1-9 each on a separate grid. Try to find patterns that will help them identify multiples of each number.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |
| 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 |
| 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |
| 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |
| 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |
| 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 |
| 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |
Add to plan
Level Three