Writing Algebra Equations
WRITE AN EQUATION: Logan bought a new shirt for $39, shorts for $19, and shoes for $75. What was the total cost?
39+19+75=T
4x6x14
336
The first step of PEMDAS
Parentheses/Groupings
A story problem asks for the TOTAL DISTANCE, what math operation are you most likely to use? +-x÷
addition
WRITE AN EQUATION:Six students bought food for $28 and drinks for $11. They shared the cost equally. How much did each student pay?
(28+11)÷6 = e
(9+16)x8
200
The second step of PEMDAS
Exponents 43
A story problem asks for the TOTAL LEFTOVER, what math operation are you most likely to use? +-x÷
Subtraction
WRITE AN EQUATION:Cooper earns $85 each week and spends $68 each week. He saves what is leftover. How much will he save in 12 weeks?
12 x (85-68)=s
27x3÷9+12
21
The third step of PEMDAS
Multiplication or Division, first come first serve!
A story problem says SPLIT EQUALLY, what math operation are you most likely to use? +-x÷
Division
WRITE AN EQUATION:Victor runs 4 miles a day for 5 days, then runs 10 miles a day on the weekend. How far does he run in one week?
4x5+2x10=w
24÷2-(1+4)x2
2
The 4th step of PEMDAS?
Addition or Subtraction, first come first serve?
A story problem states EACH shirt costs $5, what is the cost for four shirts? What math operation are you most likely to use? +-x÷
Multiplication
WRITE AN EQUATION:Janice has $15. She earns $28 more, then buys two songs for $2 each. How much money does she have left?
15+28-2x2=L
34x(6÷2)+6-5
103
What is important to remember about the MD or AS step in PEMDAS?
FIRST COME FIRST SERVE! LEFT TO RIGHT!
*What is the FIRST math operation you should do to solve this problem?*
Four friends bought their teacher a coffee gift card for $20 and flowers for $12. They split the cost equally amongst themselves, how much did each friend pay?
Addition, to find out how much they spent equally you need to know the total cost of the items.