Page 43 - PlayFacto_A1
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Let’s make a big number-pyramid using ten number cards.

Material: 64 Number cards (0-9)

1 Shuffle sixty-four number cards face down and take ten cards.

2 Place four cards in the first row. Find the sum or differnce between two
numbers that are placed next to each other, then place a number card
below them as a result. Place the ones digit in the results if the result is
greater than 10.

Example

Remaining cards

9 + 7 = 16 3 2 = 1

3 Mission complete when making a number-pyramid using all ten number
cards. Try again if failed.

4 Write the number-pyramid to show how you made it.

40 Workbook A-1
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