4th grade
There were 11 friends playing a video game online when 5 players quit. If each player left had 5 lives, how many lives did they have total?
11-5=6
6x5=30
30 lives
A chef needs to cook 16 potatoes. He has already cooked 7. If each potato takes 5 minutes to cook, how long will it take him to cook the rest?
16-7=9
9x5=45
45 minutes
Alvin is trying to build a small house in the forest so that he has a place to stay when he goes hiking. He started by gathering some wood. According to his blueprint, he will need 376 boards of wood. If his friend gave him 123 boards and his brother gave him 136 boards, how many more boards does he need to gather?
376 – 123 – 136 = 117
He needs to gather 117 more boards.
build a 3 digit number: 200 + 70 + 3 = ___
273
9 - 3 =
6
Lana picked 36 tulips and 37 roses to make flower bouquets. If she only used 70 of the flowers she picked, how many extra flowers did she pick?
36+37=73
73-70=3
3 extra flowers
Luke is trying to expand his game collection. He bought 3 games from a friend and bought 4 more at a garage sale. If two of the games did not work, how many working games did he end up with?
3+4=7
7-2=5
5 working games
Alvin already had 247 nails from last year, he purchased another 109 nails at the store and then he found another 144 in his toolshed. How many nails does he have?
247 + 109 + 144 = 500
He has 500 nails.
find the missing place value: 5 + 400 + ___ = 485
5 + 400 + 80 = 485
18 - 11 =
7
Isabel had 2 pages of math homework and 4 pages of reading homework. If each page had 5 problems on it, how many problems did she have total?
2+4=6
6x5=30
30 problems
A waitress has 9 tables she was waiting on with 7 women and 3 men at each table. How many customers total did the waitress have?
7+3=10
10x9=90
90 customers
To add support, Alvin decided to tie the wood joints with rope. He needs 185 feet of rope. He had 46 feet of rope to start and then his friend gave him some more. Now Alvin only needs 57 feet. How many feet of rope did his friend give to him?
57 + 46 = 103
185 – 103 = 82
82 feet of rope
__ - 5 = 2
7-5=2
33 - 9 =
24
Henry earned $5 for each lawn he mowed. If he had 12 lawns to mow but didn't get to 7 of them, how much money did he actually earn?
12-7=5
5x5=25
$25
Each gold coin is 5 mm thick, and each silver coin is 2 mm thick. A stack of 148 gold coins and 216 silver coins is about ___________ cm thick.
5x148=740
216x2=432
432+740=1,172
1,172/10=117.2
117.2cm
Alvin wanted to make sure that he is protected from the cold evenings in the forest, so he decided to build a fireplace made of cement. If he bought 215 lbs of cement and his son brought another 137 lbs, how much cement did he have originally if he now has 450 lbs?
215 + 137 = 352
450 – 352 = 98
98 lbs of cement
35 - 4 =
31
217 - 9 =
208
Luna's Discount Flowers was having a sale where each flower was $3. If Kate bought 2 roses and 2 daisies, how much did Kate spend?
2+2=4
4x3=12
$12
The ceiling is 8 feet 7 inches from the floor. Lucas can reach up to 7 feet 9 inches when he raises his arm. If he stands on a foot stool that is 8 inches tall, can he reach the ceiling?
8x12=96in - ceiling height
7x12=84in - Lucus' height
84in < 96in
Lucus cannot reach the ceiling if he stands on a foot stool.
For finishing touches, Alvin needs 70 gallons of paint. If he bought 23 gallons to add to his existing 36 gallons of paint, how much more paint will he need?
70 – 23 – 36 = 11
11 more gallons of paint
20 - 2 =
18
How much is 2 pennies, 1 dime, 3 quarters, and 5 nickels?
2 pennies = 2 cents
1 dime = 10 cents
3 quarters = 75 cents
5 nickels = 25 cents
2+10+75+25=$1.12