
2011- 2012 Vocabulary Focus on Math Computation
whole numbers (0, 1, 3, … )
whole numbers whole numbers - the numbers in the set (0,1 ,2, 3,…..)
sum sum- the answer in addition. Example: 8 + 7 = 15 The sum is 15.
difference 9 – 6 = ? 10 – 5 = ?
difference difference - the answer in subtraction. Example: 9 – 4 = 5 The difference is 5.
product product: the answer in multiplication. Example: 4 x 8 = 32 The product is 32.
quotient quotient: the answer in division. Example: 24 ÷ 3 = 8 The quotient is 8.
place value place value- the value determined by the position of a digit in a number. Example: In 562, the digit 5 means 5 hundreds, the digit 6 means 6 tens, and the digit 2 means 2 ones.
regroup regroup - to rename a number by exchanging base - ten materials of one value for base - ten materials that are equal to it. Example: 12 can be regrouped as 1 ten 2 ones or 12 ones. 253 can be regrouped as 2 hundreds 5 tens 3 ones or 1 hundred 15 tens and 3 ones.
array Array- an arrangement of objects or numbers in rows and columns. Example:
numerator numerator – the number above the fraction bar in a fraction. Example: 2/5 (2 is the numerator.)
denominator denominator - the number below the fraction bar in a fraction. 2/5 (5 is the denominator.)
mixed number mixed number- a number written as a whole number and a fraction. Example: 2 ¾
estimate estimate -a rough guess or calculation about an amount, distance or cost.
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