Integers
What is the definition of the word INTEGER?
A positive or negative whole number.
What is the standard form of 132 ?
169
Which of the following integers are perfect squares?
25, 12, 1, 361, 196, 2, 111
25, 1, 361, 196
What is the square root of 225?
15
Which of these numbers are real numbers?
2/3, -1557, 0, 0.3535, pi
ALL
Write these integers in ascending order.
32, -23, 22, -32, 23, -22
-32 , -23, -22, 22, 23, 32
What is the exponential and standard for of 10 to the negative 4th power?
1/10 x 1/10 x 1/10 x 1/10 = 1/10,000
0.0001
A miniature portrait of George Washington is square. One side of the picture measures 13 centimeters. What is the area of the portrait?
169 centimeters2
Rosy wants a large picture window put in the living room of her new house. The window is to be square with an area of 49 square feet. How long should each side of the window be?
7 feet
Is the following list of numbers rational or irrational? Why?
6.3 , 23 , -3 , Square root of 16
Rational, because all the numbers can be written as a fraction with integers.
Which integer has the greatest absolute value?
5, -9, 10, -2, 13, -5, -14, 7
-14
Write 4.9×108 in standard form.
490,000,000
What number squared equals 484?
22
Tate is planning to put a square garden with an area of 289 square feet in his back yard. What will be the length of each side of the garden?
17
What is a rational number?
Any number that can be written as a fraction, where both the numerator (the top number) and the denominator (the bottom number) are integers, and the denominator is not equal to zero.
Mt. Everest, the highest elevation in Asia, is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet below sea level. What is the difference between these two elevations?
27,716 feet
Write the following numbers in descending order in standard form.
5.05 x 107, 9.7 x 10-8, 1.23×109, 2.12 x 10-5
1,230,000,000, 50,500,000, 0.0000212, 0.000000097
2025 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows.
45
Which two numbers would the square root of 15 fall between?
3 and 4
Is pi a rational number? Why or why not?
pi approximately equals 3.14159265359... and is a non-terminating non-repeating decimal number. Hence 'pi' is an irrational number.
Metal mercury at room temperature is a liquid. Its melting point is –39°C. The freezing point of alcohol is –114°C. How much warmer is the melting point of mercury than the freezing point of alcohol?
75 degrees
2Write the following numbers in ascending order.
6.25 x 104, 152, 1.2 x 102, 54
1.2 x 102, 152, 54, 6.25 x 104
Len is baking a square cake for his friend’s wedding. When served to the guests, the cake will be cut into square pieces 1 inch on a side. The cake should be large enough so that each of the 121 guests gets one piece. How long should each side of the cake be?
11 inches
A square desktop has an area of 325 square inches. What is the closest length of one side of the desktop?
18 inches
Which subsets would the square root of 81 belong?
Natural, Whole, Integers, Rational Real