Vocab
To write a division expression as multiplication, you multiply by the ________________ of the divisor?
Reciprocal
When subtracting decimals, you must line up the decimal points.
True
45 ÷ 4.5
10
The name of this unit is _______________________.
Positive Rational Numbers
Mark and Zach go to the grocery store. Zach's bill was $10.50 and Mark's bill was $3.84. How much more did Zach spend?
Subtraction
The answer to a multiplication problem is called the _____________.
The product.
When adding decimals, you must count how many places you move the decimal points
False
21.6 • 7
151.2
We must change mixed numbers into ______________ before we are able to multiply or divide.
Improper Fraction
Addition
The ___________ is the quantity to be divided.
The divisor.
In a division problem, we determine how many decimal places we need to move based on the divisor
True
91.2 + 89.9
181.1
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Madison is buying grapes that cost $1.99 per pound. If Madison wants to buy 4 pounds, how much will she pay?
Multiplication
What are the two parts of a fraction called?
In multiplication problems, if the numbers that we are multiplying do not have the same amount of places values, then we must annex zeros.
False
201.7 – 104
97.7
Moving a decimal point two places to the right is equivalent to multiplying by what number?
100
Aden is planting sunflowers along one side of his garden. The length of the garden is 26.1 feet and he wants to plant a seed every 3 feet. How many sunflowers will Aden plant?
Division
A fraction whose numerator is larger than the denominator is called _________________.
An improper fraction
When adding and subtracting fractions, we must have a common denominator
True
3.0 + 1.6 • 2.0 (order of operations)
6.2
In a division problem, if our divisor is less than one, then our quotient is _________________.
Greater than the dividend.
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