Real numbers - practice problems
Real numbers include all rational numbers (integers, fractions) and irrational numbers (non-repeating, non-terminating decimals), forming a complete ordered set that can be represented on the number line. Every point on the number line corresponds to exactly one real number. Real numbers support all standard arithmetic operations and ordering relationships. Key subsets include natural numbers, whole numbers, integers, rational numbers, and irrational numbers like √2 and π. Properties of real numbers include closure, commutativity, associativity, identity elements, and inverses for addition and multiplication. Understanding real numbers is fundamental to algebra, calculus, and most mathematical applications in science and engineering.Directions: Provide a careful solution to each problem, showing all steps in your work.
Number of problems found: 162
- During 2
During the 2006 Olympics, a gymnast received the following scores: 8.9, 9.2, 9.15, and 9.05. What is the sum of the gymnast's scores? - The mystery number
Find the number that is 10,000 less than 632,724.925 - Jacqui
Jacqui ran a mile and a half on Monday, Wednesday, and Friday and three-fourths of a mile on Tuesday and Thursday. How far did she run in all? - Decadic number What is the expanded form of this number? 18.029 A: (1x10)+(8x1)+(2x1/10)+(9x1/100) B: (1×10)+(8×1)+(2×1/10)+(9×1/1,000) C: (1×10)+(8×1)+(2×1/100)+(9×1/1,000) D: (1×10)+(8×1)+(2×11/00)+(9×1/100)
- Scientific notation mul
A student found the product of 8 × 10³ and 7 × 105 to be 5.6 × 108. What is the error? What is the correct product? Complete the explanation. - James 7
James bought a pair of shoes worth 650.00 pesos. Eyeglasses that cost p 86.75 and some school supplies worth p 538.95. How much did he spend in all? - 5 addition problems
No problem; here are five decimal addition problems for you to practice: 1. What is the result of 3.5 + 2.1? 2. What is the result of 0.8 + 0.3? 3. What is the result of 5.2 + 1.7? 4. What is the result of 2.5 + 0.9? 5. What is the result of 1.4 + 0.6? I - Five and four
Five divided by four times the number is 0.25. What is that number? - Is equal
Is it equal following terms? -9 21 = (-9) 21 - Reciprocal
Calculate the reciprocal numbers for the given real numbers. - Decimal places
How many decimal places would the product of 2.79 and 0.0043 have? - The diameter 2
The diameter of the Earth is 12,756 kilometers. If Mercury's diameter is about 7,876.6 kilometers shorter than Earth's, what is Mercury's diameter? - Write 3
Write a real-world problem involving the multiplication of a fraction and a whole number with a product between 8 and 10, then solve the problem. - Difference of a half
Calculate three times the half difference of 7.5 and 2.1, - Round 19
Round 644.4 to the nearest one. - Bubble bee marbles
Mark has 100 marbles. Seventeen are bubble bee marbles. What decimal number shows the fraction of marbles that are bumblebees? - Number sum
What is 2/3 of the sum of numbers (0.10) and (-5.3)? - Decimal number
I am a decimal number between 0.3 and 0.5. the digit in my hundredth place is five more than the digit in tenth place, off the number in tenth place is 4. What is the number? - Expression values
Determine the values of the following expressions: a) 3² - (- 4) b) 4-321 c) -32-7 - Number sum comparison How many times is the number 0.045 greater than the sum of 0.006 and 0.003?
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
