# Real numbers - practice problems

Direction: Solve each problem carefully and show your solution in each item.#### Number of problems found: 160

- 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? - 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 × 10^{5}to be 5.6 × 10^{8}. 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? - No problem

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 - Reciprocal

Calculate the reciprocal numbers for the given real numbers. - Is equal

Is it equal following terms? -9^{ 21}= (-9)^{ 21} - Decimal places

How many decimal places would the product of 2.79 and 0.0043 have?

- Round 19

Round 644.4 to the nearest one. - 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. - Which 8

Which among the following real numbers below is the least? A. 5/8 B. 0.75 C. 7/10 D. 35/99 - Bubble bee marbles

Mark has 100 marbles. Seventeen are bubble bee marbles. What decimal number shows the fraction of marbles that are bumblebees?

- Greater 68534

How many times is the number 0.045 greater than the sum of 0.006 and 0.003? - Difference 8062

Calculate three times the half difference of 7.5 and 2.1, - Closest natural number

Find the closest natural number to 4.456 to 44.56 and 445.6. - Numbers 5276

What is 2/3 of the sum of numbers (0.10) and (-5.3)? - Expressions: 2381

Determine the values of the following expressions: a) 3² - (- 4) b) 4-321 c) -32-7

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