Addition
281+116 =
397
Estimate the following:
325 + 478 =
300 + 500 = 800
348 - 125 =
223
What is the answer to an addition problem called?
sum
Write one hundred eighty-six in standard form.
186
407 + 389 =
796
Estimate the following:
5,248 + 8,888 =
5,000 + 9,000 = 14,000
714 - 561 =
153
What is the answer to a subtraction problem called?
Difference
Write the number name for 7,356.
Seven thousand three hundred fifty-six
5378 + 4978 =
10,356
Estimate the following:
9,354 - 5,789 =
9000 - 6000 = 3000
9087 - 3295 =
5792
What are the numbers added together in an addition problem called?
Addends
Write the expanded form of 8,296.
8000 + 200 + 90 + 6
37,265 + 70,928 =
108,193
Estimate the following:
87,526 - 28,546 =
90,000 - 30,000 = 60,000
6008 - 3189 =
2819
Roughly calculating a number or value... It is often done by rounding.
Estimate
Write the expanded form for 847,038.
800,000 + 40,000 + 7,000 + 30 + 8
556,975 + 72,996 + 375,208 =
1,005,179
Estimate the following:
5,754 + 3,899 + 8,542 =
6,000 + 4,000 + 9,000 = 19,000
882,176 - 157,383 =
724793
To trade amounts of equal value is called?
Regroup
Write the standard form of eight million, three hundred forty-four thousand, eighty-eight.
8,344, 088