MATH WORDS Second GRADERS NEED TO KNOW:
1. Sum: The answer to an addition problem. Example: In the expression 3 + 2 = 5, 5 is the sum.
2. Difference: The answer to a subtraction problem. Example: In the expression 3 - 2 = 1, 1 is the difference.
3. Addends: Numbers that are being added. Example: In the expression 3 + 2 = 5, 3 and 2 are addends.
4. Array: A set of objects in equal rows and equal columns.
5. Columns: Go up and down from top to bottom; vertical
6. Rows: Go across from left to right; horizontal
7. Number Line: A diagram that represents numbers as points on a line.
8. Penny: Coin worth 1 cent
9. Nickel: Coin worth 5 cents
10. Dime: Coin worth 10 cents
11. Quarter: Coin worth 25 cents
12. Dollar: Bill worth 100 cents
13. Minute Hand: The long hand on the clock
14. Hour Hand: The short hand on the clock
15. Ones: Place value term referring to furthest number to the right (in whole numbers). In the number 576, 6 is in the ones place.
16. Tens: Place value term referring to the second number from the right (in whole numbers). In the number 576, 7 is in the tens place.
17. Hundreds: Place value term referring to third number from the right (in whole numbers). In the number
576, 5 is in the hundreds place.
2. Difference: The answer to a subtraction problem. Example: In the expression 3 - 2 = 1, 1 is the difference.
3. Addends: Numbers that are being added. Example: In the expression 3 + 2 = 5, 3 and 2 are addends.
4. Array: A set of objects in equal rows and equal columns.
5. Columns: Go up and down from top to bottom; vertical
6. Rows: Go across from left to right; horizontal
7. Number Line: A diagram that represents numbers as points on a line.
8. Penny: Coin worth 1 cent
9. Nickel: Coin worth 5 cents
10. Dime: Coin worth 10 cents
11. Quarter: Coin worth 25 cents
12. Dollar: Bill worth 100 cents
13. Minute Hand: The long hand on the clock
14. Hour Hand: The short hand on the clock
15. Ones: Place value term referring to furthest number to the right (in whole numbers). In the number 576, 6 is in the ones place.
16. Tens: Place value term referring to the second number from the right (in whole numbers). In the number 576, 7 is in the tens place.
17. Hundreds: Place value term referring to third number from the right (in whole numbers). In the number
576, 5 is in the hundreds place.