Partial Pyramids

Menu Level 1 Level 2 Level 3 Pyramid Puzzle Help More

Complete the pyramids so that the numbers in each brick is the sum of the two numbers in the bricks below.

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8

13

20

3

5

8

12

1

2

3

5

7

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15

Correct Wrong

12

7

8

11

8

Correct Wrong

3

Correct Wrong

6

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171

81

Correct Wrong

35

Correct Wrong

Correct Wrong

14

Correct Wrong

Correct Wrong

Correct Wrong

2

Correct Wrong

Correct Wrong

Correct Wrong

Correct Wrong

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+

150

Correct Wrong

77

Correct Wrong

Correct Wrong

40

Correct Wrong

Correct Wrong

Correct Wrong

22

Correct Wrong

Correct Wrong

Correct Wrong

Correct Wrong

12

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72

Correct Wrong

Correct Wrong

17

Correct Wrong

17

7

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3

Have a guess what might go in the yellow brick then work out whether is is too big or too small to make the bricks above.

Adjust your guess accordingly.

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20

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7

Correct Wrong

3

6

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1

Confused
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This is Partial Pyramids level 1. You can also try:
Level 2 Level 3

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

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Description of Levels

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Level 1 - Adding positive whole numbers

Level 2 - Adding directed numbers

Level 3 - Adding fractions

Pyramid Puzzle - The same sort of puzzle but with a different objective.

More activities including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Help

The number in each brick of the pyramid is found by adding together the numbers in the two bricks below. To find the numbers in some bricks you may have to use subtraction if a brick number above is given. You will need a good problem solving styrategy to solve the last two puzzles in each exercise.

Pyramid Help

Mathematical Notation

Use the forward slash / to type a fraction then the right arrow or tab key to end the fraction.

For example: Type 1/2 to get a half.

For mixed numbers, such as three and a half, type 3 space 1/2.

Fractions should be given in their lowest terms.

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can double-click the 'Check' button to make it float at the bottom of your screen.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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