1. Subtraction 99 Boards YuMi Deadly Maths Past Project Resource
YUMI DEADLY CENTRE School of Curriculum
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99 Boards
Subtraction
YuMi Deadly Maths Past Project Resource
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© 2007, 2013 YuMi Deadly Centre

2. 99 Board
Subtraction
These are predominantly templates, giving one or two examples for each type of activity. They can be duplicated and used to work with children in developing and consolidating understanding of the relevant concepts.
HOW TO USE THIS MATERIAL:
Do not use this material in slide show, it will not work. Right click, and select “End Show” to exit slide show.
For further details of how to use this material, please refer to Basic Maths Booklet VB2: Mathematics behind Whole-Number Numeration and Operations.
© 2007, 2013 YuMi Deadly Centre

3. Subtraction using sequencing Take away 10s then take away 1s
One example with answers
Two blank examples
© 2007, 2013 YuMi Deadly Centre

4. = 35
Example 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre

5. = 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre

6. = 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre

7. Subtraction using compensation Take away 10s then add 1s
One example with answers
Two blank examples
© 2007, 2013 YuMi Deadly Centre

8. = 36
Example 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre

9. = 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre

10. = 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
Place the circle on the first number.
Using the arrows to take away the second number.
Place the hexagon on the answer and type the answer in the box.
© 2007, 2013 YuMi Deadly Centre