Operations Expressions Flashcards
1
Q
“more than” is what in math?
A
+ addition
2
Q
“less than” is what in math?
A
- subtraction
3
Q
“is” is what in math ?
A
= equals
4
Q
“per”
A
/ divide
5
Q
“of”
A
- multiply
6
Q
“increase by”
A
+ addition
7
Q
Last year, two companies, Company A and Company B, produced 6.3x million and 2.7x million widgets, respectively, where x represents an integer. If every other company produced a combined total of 5 million widgets last year, which of the following values could be the total number, in millions, of widgets produced?
125 274 347 459 536 698
A
Answers = C, E and F
Add 6.3x + 2.7x which = 9x plus you have the 5 other companies made so
9x + 5 = ?
now you know that x is an integer, so it must divide evenly
take the answers, subtract 5 from them and divide them by 9. If 9 divides in them evenly it is correct answer
