Multiply- mult 10
Marcus does 30 multiplication problems every school day for two weeks. How many problems has he done?
a. 150 b. 300 c. 370 d. 700
b. 300 multiplication problems
Zara is making breakfast parfaits for her family of 4 people. She has 20 strawberries and 36 blueberries. To have equal portions, how many strawberries and how many blueberries go in each?
a. 5 s, 5 b b. 5 s, 9 b c. 20 s 36 b d. 9 s, 4 b
b. 5 strawberries and 9 blueberries in each
Any number multiplied by 0 is always 0. Which property of multiplication is this?
a. Commutative property b. Identity property
c. Zero property d. Associative property
c. Zero property of multiplication (Zero is the hero)
Scout earns 12 points for each level completed in a video game. She loses 2 points for each level she has to restart. She has completed 10 levels, but she had to restart 5 levels. How many points does she have?
a. 84 b. 110 c. 120 d. 130
b. 110 points
12 x 10 = 120, 5 x 2 = 10, 120 - 10 = 110
Abby and Kayla's pet pony weighs 207 pounds less on earth than it would weigh on Jupiter. The pony weighs 135 on earth. How much would it weigh on Jupiter?
a. 328 lbs. b. 753 lbs. c. 72 lbs d. 342 lbs.
d. 342 lbs. 135 + 207 = 342
Penny rounds and adds the following numbers. 333, 309, 404. Her result is 1040. Did she round to the nearest ten or the nearest 100?
a. nearest 10 b. nearest 100 c. she did not round
a. nearest 10 (330 + 310 + 400)
Aubrielle fits 20 cookies per cookie tin. She bakes five tins full of cookies. How many cookies does she bake in all?
a. 25 b. 50 c. 200 d. 100
c. 5x20 = 100 cookies
Penny has five math problems to finish before supper time. Each one will take her 3 minutes. Supper is in 37 minutes. How much free time will she have once she finishes her math?
a. 9 min. b. 40 min c. 33 min d. 22 min
d. 22 min, 37 - (3x5)= 37 - 15 = 22 minutes freetime
What property of multiplication does Evan show in the following equation?
11x5 = 5x11
a. Commutative property b. Identity property
c. Zero property d. Associative property
a. Commutative property
Andreas wants to go with his Mom, his brother, and his uncle to the amusement park. The entrance fee is $15 per adult, and $9 per child. Parking costs $12 per car. Lunches will cost $10 per person. How much money will they need for this outing?
a. $120 b. $100 c. $212 d. $132
b. $100
2 x 15 = 30, 2 x 9 = 18, 4 x 10 = 40, 30+18+12+40 = 100
b. Garrett wants to quickly add four large numbers. What would be a close estimate?
194 + 246 + 53 + 498
a. 800 b. 900 c. 1000 d. 1200
c. 1000 (200 + 250 + 50 + 500)
Elizabeth thinks of a three digit number. The digits are 2, 6, and 9. Her clues to the riddle are that the number is odd and is greater than 600. What is her number?
a. 269 b. 926 c. 629 d. 962
c. 629 (only odd above 600)
Garrett has an array of stamps that is 60 x 5. Jadon has an array of stamps that is 30 x 10. Which boy has the most stamps?
a. Garrett b. Jadon c. Both have same
c. 60x5 = 30x10 = 300 Both have same
Lizzy is creating a Christmas collage with 64 stickers. She arranges them in 8 equal rows. How many stickers are in each row?
a. 8 b. 9 c. 7 d 12
a. 64/8 = 8 stickers per row
Any number multiplied by 1 is that same number. Which property of multiplication is this?
a. Commutative property b. Identity property
c. Zero property d. Associative property
b. Identity property of multiplication (a number keeps it's own identity when multiplied by one.
Eleanor puts $7 of her weekly allowance into savings for 9 weeks. She spends $37 of her savings on Valentines treats. How much is left in her savings.
a. $56, b. $127, c. $26, d. $100
c. $26, 7 x 9 = 63, 63 - 37 = 26
There are 532 dogs enrolled in police academies. 246 graduate in July. 187 graduate in August. 10 drop out of the program. How many dogs still need to graduate?
a. 111 b. 109 c. 99 d. 89
d. 89 (532-246-187-10=89).
Alexa thinks of a three digit number with the digits of 4, 5, and 6. The number rounds to 700 when rounded to the nearest 100. What is her number?
a. 456 b. 564 c. 645 d. 654
d. 654 (more than half way between 600 and 700)
Dr. D awards 8 students with 80 points and 6 students with 100 points. How many points were awarded in all?
a. 640 b. 600 c. 1240 d. 1420
c. 8x80=640, 6x100=600, 640+600=1240
Kayla receives a total of 56 Valentines cards. She displays them hanging equally on 7 long ribbons. How many cards are on each ribbon?
a. 12 b. 9 c. 8 d. 4
c. 56 / 7 = 8 cards per ribbon
Zara writes the following equation on the board. What property is shown by this?
5 x (3 + 4) = (5 x 3) + (5 x 4)
a. Commutative property b. Identity property
c. Distributive property d. Associative property
c. Distributive property (the multiplied factor of 5 is distributed to both the 3 and the 4)
Alexa is making Valentines pinwheels for 5 friends. Each pinwheel uses 9 sections and three clips. How many sections and clips does Alexa need for this project?
a. 45, 15 b. 36, 21 c. 47, 42 d. 14, 7
a. 45 sections and 15 clips, 5 x 9 = 45, 5 x 3 = 15
There are 233 light grey carpet tiles in the room and 93 dark grey tiles in the room. How many tiles in all?
a. 236 b. 140 c. 326 c. 336
c. 326 tiles in all (233 + 93 = 326)
Adi says that 2 of the following numbers will round to 1000, when rounded to the nearest 100. Which ones?
956, 889, 937, 981
a. 889,937 b. 956, 981 c. 981, 889 d. 956, 889
b. 956, 981
Eleanor has 400 tulip bulbs to plant in a garden plot that is a square space. What array should she use to arrange the bulbs most evenly in the space?
a. 40 x 10 b. 20 x 20 c. 2 x 200 d. 400 x 1
b. 20 x 20 is the most even array of bulbs
Ashlyn opens her new box of 56 crayons. She notices that there are 8 rows of crayons. How many crayons are in each row?
a. 6 b. 64 c. 7 d. 8
c. 56 / 8 = 7 crayons per row
Max says that the following equation shows one of the properties of multiplication. Which property?
5 x (3 x 4) = (5 x 3) x 4
a. Commutative property b. Identity property
c. Distributive property d. Associative property
d. Associative property (in multiple multiplications, the factors can be grouped in any order)
Zoe bought 4 packets of foam darts that had 3 rows of 10 darts in each packet. After the dart war with her brothers, 99 darts were left. How many darts were missing or lost?
a. 11 b. 19 c. 31 d. 21
d. 21, 4 x 3 x 10 = 120, 120 - 99 = 21
Each carpet tile in the classroom is 4 sq. ft. Eleanor counted 13 tiles from the door to wall by Mr. Jeske's desk and 20 tiles from the sink to the windows. How much area is covered by the carpet tiles?
a. 1040 sq. ft. b. 140 sq. ft. c. 1400 sq. ft. d. 1000 ft.
a. 1040 sq.ft. 13 x 20 x 4 = 1040
Marcus says one of these numbers is greater when rounded to the nearest 10 than when it is rounded to the nearest 100. Which number is it?
a. 305 b. 451 c. 560 d. 671
a. 305 310>300