Estimation is the key to success in Whole Number Operations!
This lesson teaches students to round to the greatest place and estimate the product of any multiplication problem. Since I began teaching this lesson prior to the rest of whole number multiplication (2 x 2, 3 x 2, etc) our mastery has drastically improved.
Students are given problems like 7 x 372 or 565 x 39 and practice solving 7 x 400 = 2,800 and 600 x 40 =24,000 instead. Once they've mastered this skill, it enables them to check their answers for accuracy for the remainder of our time on multiplication.
The lesson includes:
-Teacher Lead Problem Set
-Partner Problem Set
-2 pages of Independent Practice
-Challenge problems for early finishers
-Answer Keys for Everything
This is a great lesson to teach before 4th or 5th grade multiplication or as a review lesson for 6th grade!
Love this lesson? It pairs well with this one:
Mentally Multiplying by Multiples of 10
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