Assess Readiness
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The value of 3 in 153 is different than the value of
3 in 435. What is the value
of 3 in each number?The value of 3 in 153 is 3 ones. The value of 3 in 435 is 3 tens.
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Fill in the blank: 5 in 435 is one place to the right of 5 in 153, so the value of 5 in 435 is ____ its value in 153.
\frac{1}{10} -
Look at Part 2. When multiplying a number by powers of 10, what do you notice about the exponent and the number of zeros?
In what direction does the decimal move?Possible response: the exponent tells you how many places to move the decimal to the right, and the exponent corresponds to the number of zeros in the product.
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When dividing a number by powers of 10, what do you notice about the exponent and the number of places the decimal moves? In what direction does the decimal move?
Possible response: the exponent tells you how
many places to move the decimal point to the left. -
Look at Part 3. What is 404.55 written in expanded form?
4
\times 100 + 0\times 10 + 4\times 1 + 5\times (\frac{1}{10} ) + 5\times (\frac{1}{100} ) -
What expression can you use to find how many bagels the school bought?
45
\times 12 -
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