Vocabulary
Sum
57 + 22 =
79
93 - 32 =
61
85 - 49 =
36
189 written in expanded form
100 + 80 + 9
What is the answer to a subtraction problem called?
Difference
632 + 661
1,293
645 - 237=
408
342 - 128 =
214
The digit in the thousands place: 16,345
6
What is the first step to solving an addition or subtraction problem?
Line up the place values
5,647 + 854 =
6,501
500 - 78
422
5,786 - 2,964 =
2,822
The value of the digit in the hundreds place: 53,636
600
What strategies are used to estimate addition and subtraction problems? (name both)
Rounding and Compatible Numbers
3,965 + 11,357 =
15,322
9,000-5,637=
3,363
32,854 - 17,864 =
14,990
5,643 rounded to the nearest hundred
5,600
What are the 3 forms of a number?
Standard form, Word form, and Expanded form
32,789 + 65,382 =
98,171
8,000 - 4,678=
3,322
543,846 - 327,467 =
216,379