Vocabulary
How do you find the sum of two or more numbers?
Add numbers together.
What is 100 more than 4700?
4800
934 + 835
1769
765 - 321
444
Write 32,781 in expanded form.
30,000 + 2,000 + 700 + 80 + 1
Subtract
What is 1000 more than 43,583?
44,583
3,257 + 2,734
5,991
2,364 - 1,247
1,117
What is the place value of the digit 2 in the following number? 24,652
ten thousands place
If asked to determine "how much in all", you would do what calculation?
Addition
What is 1,000 less than 31,092?
30,092
54,119
11,249
What is the value of the digit 3 in the following number? 231,480
30,000
What calculation would you do if you were determining "how much more"?
Subtraction
What is 20,000 less than 352,911?
332,911
20,684 + 38,417
59,101
74,630 - 55,852
18,778
Round 432,357 to the nearest thousand
432,000
How do you estimate the sum or difference between two numbers?
Round the numbers and then calculate the numbers.
What is 100 more than 39,947?
40,047
201,564 + 198,547
400,111
350,300 - 143,648
206,652
John flew 1,739 miles on his first flight and another 2,436 miles on his second flight. About how many miles did he fly in all? Estimate the sum by rounding each number to the nearest hundred.
4,100 miles