2-digit Multiplication Review Honors Math – Grade 5.

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Presentation transcript:

2-digit Multiplication Review Honors Math – Grade 5

Problem of the Day Joanie can type 45 words per minute. At this rate of speed, how many words can she type in 210 minutes? Before we solve this problem, let’s review our basic multiplication facts! Math Minutes – Multiplication Facts Review

Problem of the Day Joanie can type 45 words per minute. At this rate of speed, how many words can she type in 210 minutes? What are the important facts? What operation does this word problem suggest? Multiplication! Let’s take a closer look…

Setup the problem. Aligning the factors is key! FACTORS – Numbers multiplied together to find a product. VOCAB ALERT PRODUCT – the answer to a multiplication problem. VOCAB ALERT Remember to align each place value column. Always start in the 1’s column Now, we are done with the 1’s column. Before we multiply by 10’s. What must happen? Place a 0 in the 1’s column! 0 Now, multiply by 10’s. 048 Once we have multiplied by 1’s and then 10’s, we must ADD the 2 partial products to find the product TAG your answer statement.

What does TAG mean? TAGTAG Turn the question into an opening statement. How many words can she type in 210 minutes? Joanie can type Answer the question. What is the answer? 9450 Give the answer a label what? words Put it all together… Joanie can type 9,450 words.