Vocabulary
A problem containing an equal sign. As opposed to an expression which does not contain an equal sign.
What is an equation?
12 x 102
What is 1,200?
75 x 25 =
What is 1,875?
316 x 50 =
What is 15,800?
Mrs. Proscia dances for 120 minutes, 12 times a week. How many minutes does Mrs. Proscia dance a month?
What is 1,440 minutes?
Using mental math to solve an equation. For example, finding friendly numbers.
What is an estimate?
5 x 10 5
What is 500,000?
22 x 14 =
What is 308?
115 x 40 =
What is 4,600?
Mrs. Neville baked cookies to sell for her son's school's bake sale. The cookies were packaged in boxes of 12. If she sold 16 boxes, how many cookies did she sell in all?
What is 192 cookies?
Digits in an equation that involves multiplication. The name of a number you multiply with another.
What is a factor?
4 x 10? = 4,000
What is 3?
67 x 41 =
What is 2,747?
574 x 65 =
What is 37,310?
A cruise ship has 11 decks. Each deck has 324 rooms. How many rooms are on the cruise ship?
What is 3,564 rooms?
The answer to a multiplication problem.
What is a product?
? x 105= 600,000
What is 6?
98 x 30 =
Now, estimate (to the biggest place value)
What is 2,940?
What is 100 x 30 = 3,000?
732 x 78 =
Now, estimate (to the biggest place value)
What is 57,096?
What is 700 x 80 = 56,000?
Mrs. Werner said that 300 x 103 = 3,000,000. Is she correct? Why or why not?
She is incorrect because she added one too many zeros/places
A letter used in place of an unknown value.
What is a variable?
? x 100=70,000
What is 700?
78 x 96 =
Now, estimate (to the biggest place value)
What is 7,488?
What is 80 x 100 = 8,000?
989 x 85 =
Now, estimate (to the biggest place value)
What is 84, 065?
What is 1,000 x 90 = 90,?000
Okwuchi started out making an allowance of $16 a month. Now, she makes 6 times that amount per month.
Write an equation, using a variable, to represent the problem.
What is a= 16 x 6?