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Math Puzzle
15
overestimate : an estimate that is greater than the exact number
underestimate : an estimate that is less than the exact number
compatible numbers : close numbers to those in a problem and they help you do mental math
estimates : a number that is close to the exact answer and is easier to find
dividend : the number to be divided in a division problem
divisor : the number by which the dividend is divided in a division problem
exponential form : a number is in _____ _____ when it is written with a base and an exponent
numerical expression : a mathematical phrase that includes only numbers and operation symbols
simplify : when you _____ a numerical expression, you find its value.
mental math : doing math in your head
commutative property : you can add or multiply numbers in any order
associative property : when only adding or only multiplying, you can group any of the numbers together
distributive property : multiply a number by a sum, multiply by each number in the sum, and then add
multiplicative identity : the product of a number and one is the number
additive identity : the sum of a number and zero is the number
Math Puzzle
Across:3. | an estimate that is less than the exact number | 5. | a number that is close to the exact answer and is easier to find | 8. | a number is in _____ _____ when it is written with a base and an exponent | 10. | the number by which the dividend is divided in a division problem | 12. | the number to be divided in a division problem | 13. | doing math in your head | 14. | you can add or multiply numbers in any order | 15. | close numbers to those in a problem and they help you do mental math |
| | Down:1. | a mathematical phrase that includes only numbers and operation symbols | 2. | the product of a number and one is the number | 4. | the sum of a number and zero is the number | 6. | when you _____ a numerical expression, you find its value. | 7. | multiply a number by a sum, multiply by each number in the sum, and then add | 9. | an estimate that is greater than the exact number | 11. | when only adding or only multiplying, you can group any of the numbers together |
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© 2015
PuzzleFast.com, Noncommercial Use Only
Math Puzzle
Across:3. | an estimate that is less than the exact number | 5. | a number that is close to the exact answer and is easier to find | 8. | a number is in _____ _____ when it is written with a base and an exponent | 10. | the number by which the dividend is divided in a division problem | 12. | the number to be divided in a division problem | 13. | doing math in your head | 14. | you can add or multiply numbers in any order | 15. | close numbers to those in a problem and they help you do mental math |
| | Down:1. | a mathematical phrase that includes only numbers and operation symbols | 2. | the product of a number and one is the number | 4. | the sum of a number and zero is the number | 6. | when you _____ a numerical expression, you find its value. | 7. | multiply a number by a sum, multiply by each number in the sum, and then add | 9. | an estimate that is greater than the exact number | 11. | when only adding or only multiplying, you can group any of the numbers together |
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© 2015
PuzzleFast.com, Noncommercial Use Only