Karen has 29 marbles. Dean has 37 marbles. How many marbles do they have all together?
They have 66 marbles.
200
Round 149 to the nearest 10
150
200
Solve for n:
137 = n + 25
n = 112
200
Solve for n:
n - 37 = 25
n = 62
200
Estimate the following:
347 + 24= ?
Round 347 to 350
Round 24 to 20
350 + 20 = 370
200
Daniel had 150 toy trucks. He gave 85 of them away to his friends. How many trucks does Daniel have now?
Daniel has 65 trucks.
300
Round 2,448 to the nearest 100
2,400
300
Solve for n:
39 + n = 248
209
300
Solve for n:
2,458 - 308 = n
n = 2,150
300
Estimate the following:
239 - 34 = ?
Round 239 to 240
Round 34 to 30
240 - 30 = 210
300
Sophia baked 300 chocolate chip cookies. Diana baked 75 oatmeal cookies. Lucy baked 170 peanut butter cookies. How many cookies did all three girls bake?
They baked 545 cookies.
400
Which number or numbers rounded to the nearest 100 equal 1, 400?
a. 1,387
b. 1,489
c. 1,401
a and c
400
Solve for n:
35 + n + 48 = 265
n = 182
400
Solve for n:
(450 + 200) - n = 234
416
400
Estimate:
John has 258 stamps. Alan has 179 stamps. About how many more stamps does John have than Alan?
Round 258 to 260
Round 179 to 180
260 - 180 = 80
John has about 80 more stamps.
400
Jason went to the store with $78.00. He bought a toy car that cost $14.00, a toy boat that cost $7.99, a stuffed animal that cost $6.50, and a model airplane that cost $29.00. About how much money does Jason have left?
(You can do the math without the dollar signs)
He has about $18.00 left.
500
Round 32,549 to the nearest thousand.
33,000
500
Solve for n:
1, 358 = n + 307 + 412
n = 639
500
Solve for n:
2,309 = n - (329 + 145)
2,783
500
Estimate to the nearest thousand:
Susan has $2, 901, Jane has $4,299, and Donna has $1,769. About how much money to they have all together?
$2,901 = $3,000
$4,299 = $4,000
$1,769 = $2,000
Answer: They have about $9,000
500
Charles has been collecting books to sell at a book sale. His mother gave him 29 books. His father gave him his entire book collection of 96 books. His friends saw all the books and took 13 of them to keep for themselves. How many books does Charles have for the book sale?