Problem Set 2
Addition and Subtraction Foundations…Lesson 1 Day 6 (Tuesday)
Use rounding or compatible numbers to estimate each difference.
1. 88 – 41 =
3. 98 – 67 =
2. 65 – 19 =
4. 378 – 312 =
5. 587 – 208 =
6. 694 – 593 =
7. Fred estimated 591 – 128. He rounded each number to the nearest hundred. Then he
subtracted. What was Fred’s estimate?
8. There are 324 girls and 271 boys at school. About how many students are at school?
Write the fact family for each set of numbers.
9. 3, 6, 9
10. 4, 7, 11
11. Draw base ten blocks to represent the number 2,003.
12. Sheri was jumping rope on the playground. She jumped 74 times without landing on the rope. What is
the number of times she jumped rounded to the nearest ten?
13. Jose read 198 pages in his library book. What is the number of pages Jose read rounded to the nearest
hundred?
14. A red squirrel buried 47 nuts in the yard. A rock squirrel buried 39 nuts. What is the best estimate of the
number of nuts the squirrels buried in the yard?
15. Which group of numerals is in order from greatest to least?
A.
B.
C.
D.
7,461
3,619
8,201
4,693
9,107
9,146
5,416
7,316
4,645
6,216
2,247
1,146
16. Write the number 958,429 in word form.
Notes
Problem Set 2
Addition and Subtraction Foundations…Lesson 1 Day 7 (Wednesday)
1. Mindy sold 178 tickets to the school carnival, and Savannah sold 229. About how many tickets did Mindy
and Savannah sell?
2. Marva bought a bracelet for $39 and a ring for $14. What is the best estimate of the difference in price of
the bracelet and the ring?
3. Chris traveled 189 miles to his aunt’s house and 95 miles to his sister’s house. About how many miles
farther was the trip to his aunt’s house?
4. Kim and Rosa collected stickers. Kim has 257 stickers and Rosa has 365. What is the best estimate of the
total number of stickers Kim and Rosa have?
The table below shows the breeds and number of dogs entered in a dog show.
Breed of Dog
Number of Dogs
Pekingese
35
Ihasa Apsa
52
Doberman
71
Round each number to the nearest ten.
7. 523
8. 954
5. About how many Pekingese and Doberman were
entered into the dog show?
6. About how many dogs entered the dog show in
all?
Round each number to the nearest hundred.
9. 4,943
10. 7,032
The table below shows the kids and number of pieces of candy in a jar.
Kind of Candy
Number of Pieces
Jolly Rancher
25
Peppermint
17
Chocolate
38
11. Which number sentence can be used to find
how many pieces candy are in the jar.
A.
B.
25 – 17 =
25 – 17 + 38 =
12. About how many Jolly Rancher and Peppermint
pieces are in the jar?
13. Write the number of pieces in order from least
to greatest.
Use different ways to write this number: 600, 542
14. expanded form
C. 17 + 38 + 25 =
D. 38 + 28
15. word form
16. Write the number two hundred thousand, four hundred two in standard form.
Problem Set 2
Addition and Subtraction Foundations…Lesson 1 Day 8 (Thursday)
Use base-ten blocks to find each sum.
1. 511 + 253 =
2. 183 + 214 =
3. 455 + 346 =
4. 268 + 258 =
5. 123 + 155 =
6. 352 + 191 =
7. What are the 3 greatest whole number you can make using the digits 4, 7, 3, and 5?
8. What is the sum of 579 and 123?
A. 456
B. 602
C. 692
D. 702
Write the numbers in order from least to greatest.
9. 6,019; 6,090; 6,010
Write the numbers in order from greatest to least.
10. 9,223; 9,280; 9,275
13. What number does the model represent?
Compare the numbers. Write >, <, or = for each.
15. 6001 _____ 6010
16. 999 _____ 9,999
14. Which number is greater than 4,387 but less
than 5,081?
A. 4,198
B. 4,275
C. 4,981
D. 5,248
Notes