Praxis CKT Math Arithmetic Operations Quiz

To find the sum of 847 and 356, you simply add the two numbers together. Starting with the units place, 7 + 6 equals 13, carrying over 1. Next, in the tens place, 4 + 5 plus the carry-over 1 equals 10, carrying over 1 again. Finally, in the hundreds place, 8 + 3 plus the carry-over 1 equals 12, resulting in a total of 1,203.

To solve 5,000 - 2,748, start by aligning the numbers vertically. Subtract each digit from right to left. Borrow where necessary: from 5,000, take 2 to make it 4,998. This leads to 4,998 - 2,748 = 2,250. Adjust for any borrowing, resulting in the final answer of 2,252.

To multiply 24 by 15, you can break it down into simpler parts: 24 × (10 + 5) = (24 × 10) + (24 × 5). This results in 240 + 120, which equals 360. Thus, the product of 24 and 15 is 360.

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To add 3/4 and 1/8, first convert 3/4 to a fraction with a denominator of 8, which is 6/8. Then, add 6/8 and 1/8 to get 7/8. This shows how to combine fractions by finding a common denominator and summing the numerators.

To solve 5/6 - 1/3, first convert 1/3 to a fraction with a common denominator of 6. This gives 1/3 = 2/6. Now, subtract: 5/6 - 2/6 = 3/6. Simplifying 3/6 results in 1/2, which is the final answer.

To multiply fractions, multiply the numerators and denominators: (2 × 3) / (3 × 4) = 6/12. Simplifying 6/12 by dividing both the numerator and denominator by 6 gives 1/2. Thus, the product of 2/3 and 3/4 simplifies to 1/2.

To divide fractions, multiply the first fraction by the reciprocal of the second. For 3/4 ÷ 1/2, this becomes 3/4 × 2/1. Multiplying gives 6/4, which simplifies to 3/2. Thus, the result of the division is 3/2.

Adding 0.75 and 0.25 combines the two values. When you break it down, 0.75 represents three-quarters, and 0.25 represents one-quarter. Together, they complete a whole, equating to 1.00, which is the total when these two fractions are summed.

To find the result of 8.5 - 3.2, align the numbers vertically by their decimal points. Subtract 2 from 5, which gives 3, and subtract 3 from 8, resulting in 5. Thus, the answer is 5.3.

To solve the expression, follow the order of operations (PEMDAS/BODMAS). First, multiply 3 by 4 to get 12. Then, add 2 to 12, resulting in 14. Finally, subtract 1 from 14 to arrive at the answer of 13.

To solve (8 + 2) × 3 ÷ 2, first calculate the expression inside the parentheses: 8 + 2 = 10. Then, multiply by 3: 10 × 3 = 30. Finally, divide by 2: 30 ÷ 2 = 15. Thus, the final answer is 15.