Alma has 512 programs for the school play. After the show, Alma has 283 programs left. What is the best estimate of how many programs Alma gave out?
512 rounds to 500; 283 rounds to 300
500-300=200
100
Baseball tickets for Brayan and his two friends were $5 each. For his parents, tickets were $8 each. How much money did they spend on baseball tickets?
5x3=15, 8x2=16,
15+16 = $31
100
How old is Mrs. Jones' son?
3
200
There are three rows with eleven items in each
What is 3 x 11 or 33
200
What related multiplication sentence would help you find the missing factor in 63 ÷ ____ = 9?
9 x ____ = 63
200
Kim and Bill collect stamps. Kim has 215 stamps and Bill has 392 stamps. Which is the best estimate of how many stamps they have in all?
215 rounds to 200; 392 rounds to 400
200+400=600 stamps
200
Terrell has 32 pictures to put in his scrapbook. If he puts 4 pictures on each page, how many pages will he use?
32 ÷ 4 = 8 pages
200
Books are on sale for $8. Sergine wants to buy 6 books. How much money will she need?
8x6= $48
300
9 rows of 8
What is 9x8 = 72
300
What related multiplication sentence would help you find the missing factor in 21 ÷ ____ = 7?
7 x ____ = 21
300
Josh and Jerett play basketball. Josh made 28 points and Jerett made 11 points in their first game. Which is the best estimate of how many more points did Josh make than Jerett?
28 rounds to 30; 11 rounds to 10
30-10= 20
300
Woodmoor Elementary has 28 prizes to give out. If the prizes are distributed equally among 4 classes, how many prizes will each class get?
28 ÷ 4 = 7 prizes per class
300
How many students are in Mrs Jones' and Mr. Jackson's room all together?
21+20= 41
400
Which of the following numbers are multiples of 11? 22, 55, 34, 12, 88, 111, 44, 110
22, 55, 88, 44, 110
400
Use whole numbers. Carol wants to buy a sandwich for $3.75, an apple for $0.80 and a milk for $1.25 for lunch. What is the best estimate of the total cost of these items?
$3.75 rounds to $4.00; $0.80 rounds to $1.00; $1.25 rounds to $1.00
$4.00+$1.00+$1.00= $6.00
400
There are 10 calories in a small candy bar. How many calories are there in a dozen small candy bars?
12x10=120 calories
400
What is 64 ÷ 8?
8
500
12x12
144
500
30 ÷ 5 =
6
500
Ms. Alba owns a craft store. She sold 753 beads on Monday and 597 beads on Tuesday. Which is the best estimate of how many more beads she sold on Monday than Tuesday.
753 rounds to 800; 597 rounds to 600
800-600= 200 beads
500
Laura's cat, Miss Kitty, had five kittens. Each kitten eats 3 ounces of kitten food per day. how many ounces of food do the five kittens eat in 3 days?