Power - practice for 12 year olds - page 2 of 7
Number of problems found: 130
- Difference 68514
How many times is the difference between the squares of numbers 4 and 2 bigger than the square of their difference (in this order)? - Calculate 68454
Calculate how many times the square of the number 1/100 is less than 1/1000. (numbers in fraction form) - Power consumption
The price of electricity is ₱6.50 per kilowatt hour (kWh). How much electricity was consumed if a television with 120 W power consumption ran from 7:30 AM to 12:30 PM? How much will this cost? - Sqrt between ints
Which two consecutive integers does the square root lie in? * √45 √23 √71 √7 √86
- Mohammed
Mohammed grew a garden last year. His plot of land was 6 3/4 feet by 10 feet. He wants to have twice as much area and his garden this year. How much area will the new garden take up? - Kilograms 48761
Matthew paints his room. He paints square walls. He painted a wall with a side of 3 m and consumed 5 kg of paint. How many kilograms of paint will he need on a wall with a side length of 6 m? - Evaluate expression
Evaluate the following expression: 5 to the power of 2 - (4x4) divided by two = - The plot
Mr. Duma recently inherited a rectangular plot, part of the estate left by his late father. The plot with the following dimensions: Length=2x+1; Width=x-1. Determine the formula, in terms of x, that best describes the area of the rectangular plot. He has - An architect 2
An architect is designing a house. He wants the bedroom to have the dimensions of 8 ft by 4 ft by 7 ft. The architect doubles all three dimensions to create the den. Does that mean the den will have double the volume of the bedroom? First, find the volume
- Circumference 46181
Calculate the area of a circle that has a circumference of 314 cm. - Quadrilateral 44471
The regular quadrilateral pyramid has a surface of 260 cm² and a side wall area of 40 cm². Calculate the length of the base edge and the wall height. - Liters 44041
What is the length of the edge of a cube with a volume of V = 1728 liters? - The length 2
The length of a rectangle is 12y² – 15y + 8, and the width is 7y – 11. Find the area of the rectangle. - Circumference 40401
Calculate the diameter of a circle whose area in cm² and the circumference in cm are expressed by the same number.
- Cube-shaped box
The cube-shaped box is filled to the brim with 2 liters of milk. Calculate the edge and surface of the box. - Calculate 37881
Calculate the square of the half of the sum of the numbers 3/5 and -1/3. - What is 10
What is the measure of the square side whose area is (4x² + 28x+49) square units? - Much 37741
How much is half the half the cube half? - Granddaughter
In 2014, the sum of the ages of Meghan's aunt, her daughter, and her granddaughter was equal to 100 years. We know the age of each can be expressed as the power of two. In what year was the granddaughter born?
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