Multiplication practice problems - page 21 of 103
Number of problems found: 2057
- SKMO
Petra had written natural numbers from 1 to 9. She added two of these numbers, deleted them, and wrote the resulting sum instead of the summaries. She thus had eight numbers written down, which she managed to divide into two groups with the same product. - Probability 80785
We roll the dice and then toss the coin as many times as the number that came up on the dice. What is the probability that the coin lands head at least once? - Increases 80772
The product of two numbers we know. If we increase the first factor by 2 and decrease the second factor by two, the product increases by 4. How much does the product change if we decrease the first factor by 3 and increase the second factor by 3? - Chocolate 80717
There are 5 sponge cakes with chocolate coating in the package. Calculate the number of biscuits in 3, 6, and 9 packages.
- Production 80661
The production of 4 machines takes a total of 80 hours. They make every machine for the same amount of time. How long does it take to produce 1 machine, 2 machines, or 5 machines? - Average 80654
On average, 100 liters of milk make 16 liters of cream, and 100 liters of cream make 20 liters of butter. How many liters of milk do we need for 100 liters of butter? - Children 80653
The children in the camp slept in a cottage with 17 2-bed and 25 3-bed rooms. Other children slept in 8 cabins. Each had 1 4-bed and 1 3-bed room. All rooms and beds were occupied. How many children were in the camp? - A three-pack
A three-pack of bar soap has a wholesale cost of $1.15. A pharmacy wants to sell this product with a markup of 60%. What are the amounts of the markup and the retail price of a pack of soap? A. markup: $0.69; retail price: $1.84 B. markup: $0.69; retail p - Three 220
Three numbers are in a ratio of 2:3:4. Find the second number if their sum is 306. a. 68 b. 102 c. 136 d. 140
- Janice
Janice said that when you multiply a fraction less than 1 by a nonzero whole number, the product is always less than the whole number. Do you agree? Explain. - Positive integer integral
How many different sets of a positive integer in the form (x, y, z) satisfy the equation xyz=1400? - One-nineth as percent
What is 1/9 as a percent? Round to the nearest hundredth. . - Double 23
Double 1.25, then subtract 0.75. What do you get? - Reciprocal 13
What is the product of 5 2/3 and its reciprocal?
- Residents
In a college dormitory, 1/10 of the residents are juniors, and 2/5 of the residents are sophomores. What fraction of the students at the dormitory are juniors and sophomores? - Mailing
Pablo's mailing packages, each small package costs $2.10 to send, and each large package costs him $2.90. How much will it cost him to send one small package and six large packages? - Quotient of two fractions
If the quotient of 8/9 and 1/3 is subtracted from the product of 2 3/4 and 1 3/5, what is the difference? Write the solution as a mixed number or a fraction in the lowest terms. - Expression values
Let A = 5, B = 4.4, and C = 4.25. Find the value of each expression listed below. A² × (B - C) B × (A - C) B + C - A A - B + C - Chessboard 80533
How many ways can one white and one black square be selected on an 8x8 chessboard if the selected squares cannot lie in the same row or column?
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