Fractions
3/4+3/5+1/3
1.683
Katie has 6 nickels and 7 dimes in her pocket. 5 of the nickels and 1 of the dimes are Canadian. The others are from the U.S. Katie randomly selected a coin from her pocket. What is the probability that it is a dime or from the U.S?
7/13
679/8
84.875
A salesman sold twice as much pears in the afternoon than in the morning. If he sold 360 kilograms of pears that day, how many kilograms did he sell in the morning and how many in the afternoon
120 in the morning
240 in the afternoon
Tom and Jason both collect marbles. Tom has collected 233 and Jason has collected 842 marbles. How many marbles do they own together? Choose the better estimate (Round your answer to the nearest tens)
1070
6/8*7/7
0.75
To make a 750- piece jigsaw puzzle more challenging, a puzzle company includes 5 extra pieces in the box along with the 750 pieces, and those extra 5 pieces do not fit anywhere in the puzzle. If you buy such a puzzle box, break the seal on the box, and immediately select 1 piece at random, what is the probability that it will be 1 of the extra pieces.
5/750
138066/399
346.03
Mary, Peter, and Lucy were picking chestnuts. Mary picked twice as much chestnuts than Peter. Lucy picked 2 kg more than Peter. Together the three of them picked 26 kg of chestnuts. How many kilograms did each of them pick
Therefore, Peter, Mary, and Lucy picked 6, 12, and 8 kg, respectively.
There were 759 scissors in the drawer. Benny placed 668 more scissors in the drawer. How many scissors are now in the drawer? (Round your answer to the nearest tens)
1430
10/20*3/10
0.15
A bag contains 12 red marbles, 5 yellow marbles, and 15 green marbles. How many additional red marbles must be added to the 32 marbles already in the bag so that the probability of drawing a red marble is 3/5
18
104814/162
647
A farming field can be ploughed by 6 tractors in 4 days. When 6 tractors work together, each of them ploughs 120 hectares a day. If two of the tractors were moved to another field, then the remaining 4 tractors could plough the same field in 5 days. How many hectares a day would one tractor plough then
each of the 4 tractors would plough 144 hectares a day
There are 463 maple trees currently in the park. Park workers will plant 332 more maple trees today. How many maple trees will be in the park when the workers are finished? (Round to the nearest tens)
790
28/36*56/90
0.483
As part of a probability experiment, Emma is to answer 4 multiple choice questions. For each question there are 3 possible answers, only 1 of which is correct. If Emma randomly and independently answers each question, what is the probability that she will answer the 4 questions correctly
1/81
4215/15
281
The distance between two towns is 380 km. At the same moment, a passenger car and a truck start moving towards each other from different towns. They meet 4 hours later. If the car drives 5 km/hr faster than the truck, what are their speeds
Therefore the truck speed is 45 km/hr and the car speed is 50 km/hr
Fred went hiking along the Appalachian Trail. He hiked 318 miles the first week, and 481 miles the second week. How many miles did Fred hike? (Round to the nearest tens)
800
300/60-109/50
2.82
An MP3 player is set to play songs at random from the fifteen songs it contains in memory. Any song can be played at any time, even if it is repeated. There are 5 songs by Band A, 3 songs by Band B, 2 by Band C, and 5 by Band D. If the player has just played two songs in a row by Band D, what is the probability that the next song will also be by Band D?
1/3
1089/11
99
One side of a rectangle is 3 cm shorter than the other side. If we increase the length of each side by 1 cm, then the area of the rectangle will increase by 18 cm2. Find the lengths of all sides
10'7
Sally and Jessica decided to bake cookies for a family picnic. Sally baked 685 raisin cookies and Jessica baked 614 sugar cookies. How many cookies did they bake? (Round to the nearest tens)
1300