Maths practice for 12-year-olds - page 39 of 351

Number of problems found: 7019

Simple coefficient
Find the value of k; if x = 3, y = 2 is a solution of the equation 2x + 3y = k.
Account's balance
Kayden's monthly bank statement showed the following deposits and withdrawals: -$99.19, $65.61, -$83.61, $74.11, $17.02 If Kayden's balance in the account was $78.68 at the beginning of the month, what was the account balance at the end of the month?
From Monday
From Monday to Tuesday, the temperature fell from 23°F to −6°F. How many degrees is this temperature change?
Reciprocal of a fraction
How many ninths are there in one whole?
A+B+C=one hundred
A+B+C=100. If A=27.5 and the value of B are between 10 and 15 and which has two decimal places, then what can be the greatest value of C?
Three rationals
Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y=15.5, what is the value of z?
Poured liquid
If I pour 59ml of liquid into an area of 594 sq mm, how thick would the liquid be?
A sandbox
3/4 a sandbox has an area of 20 square feet. The length is 6 1/2 feet. What is the width of the sandbox?
A 28-inch
A 28-inch ribbon is cut into 8 pieces that are all the same length. What is the length of each piece?
This morning 2
This morning the temperature outside was -4 degrees. This afternoon the temperature was 21 degrees warmer. What was the temperature this afternoon?
A stop
A stop sign is in the shape of an 8-sided polygon (regular octagon) in which each side is 12 1/2 in. What is the perimeter?
One number in another
How many 5/8s's are in 1? (To write a whole number and fraction: 2 3/4)
Divide fractions by half
Find the result of division by half: 3/4 : 1/2 =?
Maximo
Maximo had 4/6 of a pancake. Kayla gave him another 5/6 of a similar pancake. How many pancakes did Maximo have in the end?
A piece 7
A piece of dry ice is in the shape of a cube with edge lengths of 7cm. Find the surface area of the dry ice.
A tailor
A tailor bought 72 meters of white cloth and 16 meters of blue cloth. The material was cut into equal lengths to make a school uniform. What was the greatest length of each piece of cloth that was cut?
Two pieces
Two pieces of cloth 15 and 20 meters long are to be cut into small pieces of equal lengths. What will be the greatest length of each piece?
Three chefs
Let's say you have 3 Chefs that have made 14 cakes in 8 hours. Assuming they are working at the same efficiency, how many hours does it take 10 Chefs to bake 24 cakes? (Rounded to the nearest hour)
Piece of wood
I have a 6-foot-long piece of wood that I want to cut to build picture frames. If each piece is going to be ¾ foot long, how many pieces will I be able to cut?
Bryce
Bryce collected 1/4 of a bin of glass bottles to recycle. Megan collected 5 times as many bins as Bryce. How many bins of bottles did Megan collect?

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