Multiply 4.2 by 0.3.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Grade 6 FAST Mathematics Test. Study with comprehensive questions, solutions, and tips to maximize your performance and excel in your exam!

Multiple Choice

Multiply 4.2 by 0.3.

Explanation:
When multiplying decimals, multiply as if there are no decimals, then place the decimal point so the product has the total number of decimal places from both factors. Here, each factor has one decimal place, so the product should have two decimal places. Multiply 42 by 3 to get 126. Since there are two decimal places total, place the decimal two digits from the right in 126 to obtain 1.26. This matches the idea that 0.3 is about a tenth and 4.2 is a little over 4, so the product should be a bit over 1.2, specifically 1.26.

When multiplying decimals, multiply as if there are no decimals, then place the decimal point so the product has the total number of decimal places from both factors. Here, each factor has one decimal place, so the product should have two decimal places.

Multiply 42 by 3 to get 126. Since there are two decimal places total, place the decimal two digits from the right in 126 to obtain 1.26.

This matches the idea that 0.3 is about a tenth and 4.2 is a little over 4, so the product should be a bit over 1.2, specifically 1.26.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy