Examples of equations for practice for 12 year olds - page 8 of 58
Number of problems found: 1142
- Expressed 79474
The length of the cube's edge in cm is expressed as a natural number. Its volume is greater than 100 and less than 200. Calculate the surface area of the cube. - Playground 79454
In Kocourkov, they decided to build a children's playground and volleyball courts. The volleyball court will have dimensions of 18m x 19m. The playground will have a square face. The area of both fields will be the same. What will be the dimensions of t - Paper rolls
The cost, c, of paper towels, based on the number of rolls, r, is given by this equation: c=1.29r What is the unit rate of the cost of the paper towels in dollars per roll? - Fifteen 5
Fifteen more than five times a number equals the difference between -57 and three times the number. Find this integer number.
- A box 5
A cereal box states that there are 90 Calories in a 3/4 - cup serving. How many Calories are there in 4 cups of cereal? - Equation: 78654
Find x in the ratio equation: 2:1 4/5=x:3/5 - Solve 15
Solve equation with fractions 29/12=24/12+?/12 - Eddie
Eddie and Fran are scuba diving. Eddie is 35 meters below the surface of the water, and Fran is 8 meters directly above him. The following equation describes this situation: -35 + 8 = -27 What does -27 tell us? Choose one answer: ... - In a museum
There are 250 people in a museum 2/5 of the 250 people are girls. 3/10 out of the 250 people are boys. The rest of the 250 people are adults. Find the number of adults at the museum.
- The product 8
The product of five and the difference of triple the number and three is 25. Find the number. - Balloons 2
One balloon is 3 7/10 meters above the ground. A second balloon 2 3/5 meters higher. How far above the ground is the second balloon? Complete the addition equation and a related subtraction equation to model the problem. Use x to represent the height of t - The number 6
The number of pizza slices Gilbert ate is four more than three times the amount of candy bars he ate. He ate ten slices of pizza. How many candy bars did he eat? - Jabu had
Jabu had a few marbles. Today, he played and doubled his number. Then Thabo gave him three marbles for free. Jabu now has 21 marbles. How many did he have before he started playing? Solve this problem using a suitable model. - Difference 73754
The difference between two positive integers is 25. One number is 59. What is the other number?
- The temperature 34
The temperature on a maths exam day went down 2°C and then 3°C ending up as a final temperature of 27°C. What was starting temperature? - 5 times
Find an unknown number; if five times as large as 110 is 1/2 of what number? - Arithmetic 72544
The arithmetic mean of two numbers is 12. The first number is 5. What is the value of the second number? - Length and width
Use the 5-step procedure. The perimeter of a rectangle is 34 in. The length is 4 in less than three times the width. Find the length and width. - Number 72124
The ratio of three times the number x and twice the number 9 equals 3. What is the value of the number x?
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