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5 Cards in this Set
- Front
- Back
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Squaring numbers that end in 5
1.) 25 is the second half of the answer 2.) first part of answer take tens digit of the number you're trying to square and multiply if by the number one greater than it |
15*15=
1.) = 25 2.) = 1*2= 2 15*15 = 225 |
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45 squared
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4*5=20 and add 25 to the end so
2025 is 45 squared |
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75 squared
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7*8=56
5625 |
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Squaring numbers that end in 5
1.) 25 is the second half of the answer 2.) first part of answer take tens digit of the number you're trying to square and multiply if by the number one greater than it |
7*8=56
5625 |
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95 squared
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9*10=90
95 squared = 9025 |
