3.
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How can we recognize if a number is divisible by 8? |
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[ ] |
A number is divisible by 8 if it is a square number |
[ ] |
A number is divisible by 8 if it ends in 2 or 4 |
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A number is divisible by 8 if the last two digits are divisible by 8 |
[ ] |
A number is divisible by 8 if the last three digits are divisible by 8 |
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4.
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How can we recognize if a number is divisible by 9? |
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[ ] |
A number is divisible by 9 if it is an odd number |
[ ] |
A number is divisible by 9 if the sum of its digits is divisible by 9 |
[ ] |
A number is divisible by 9 if the last two digits are divisible by 4 |
[ ] |
A number is divisible by 9 if the sum of its digits total 3 |
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5.
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How can we recognize if a number is divisible by 25? |
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[ ] |
A number is divisible by 25 if it ends in 00, 25, 50 or 75 |
[ ] |
A number is divisible by 25 if it is divisible by 8 |
[ ] |
A number is divisible by 25 if the last two digits are divisible by 8 |
[ ] |
A number is divisible by 25 if it is odd and divisible by 3 |
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6.
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What is 15 squared? |
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[ ] |
150 |
[ ] |
175 |
[ ] |
225 |
[ ] |
250 |
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7.
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Which is the smallest common multiple of 6 and 15? |
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8.
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Which are the factors of 24? |
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[ ] |
1, 2, 3, 4, 6, 8, 12, 24 |
[ ] |
2, 3, 4, 6, 8, 12 |
[ ] |
1, 2, 3, 4, 5, 8, 12, 24 |
[ ] |
1, 2, 4, 6, 12, 24 |
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9.
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What is a prime number? |
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[ ] |
A number that is only divisible by 1 and itself |
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A number that cannot be squared |
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A whole number that divides into another whole number |
[ ] |
An odd number that is divisible by 3 |
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10.
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What is the next prime number after 7? |
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[ ] |
9 |
[ ] |
11 |
[ ] |
13 |
[ ] |
27 |
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