Vocab 1
The property which states that the grouping of the addends does not change the sum. (Hint: Parenthesis)
(5+1)+2= OR 5+(1+2)=
Associative Property of Addition
8
452
+381
833
389
-252
137
When you have numbers that change by the same amount every time you go to the next step. (Can be done with addition or subtraction.)
Pattern
What is 1,000 more than 11,876.
12,876
You can add the numbers in any order and get the same answer.
2+8= OR 8+2=
Commutative Property of Addition
10
2,631
+ 371
3,102
7844
-322
7522
The number that you are subtracting from. (Typically at the top of the problem.)
Minuend
Your start number is 9,641 and you lose 100 each time. Please write the next 3 numbers in the pattern.
9,541 -> 9,441 -> 9,341
For any number, zero plus that number is the number.
0+1=
Identity Property of Addition
1
4,381
+5,692
10,073
2,345
-1,672
673
The number that is subtracted. (Typically at the bottom of the problem)
Subtrahend
Round 156,402 to the thousands place.
156,000
The answer to an addition problem
Sum
87,426
+9,032
96,458
38,567
-4,782
33,785
Tens place, Hundreds place, Thousands place, are examples of?
Place Value
What does < mean?
Less than.
The number that you add to another number.
Addend
234,765
+381,092
615,857
678,932
-34,672
644,260
When you change a number to a ten, hundred, or thousand to make it easier to do the math without writing down the whole problem.
Mental Math
3,412+6,587
9,999