Exploring Order in Mathematics.pptx

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Exploring Order in Mathemati cs

Transcript of Exploring Order in Mathematics.pptx

  • 1. Exploring Order in Mathematics

2. Does Order Matter in Mathematics? When order doesnt matter: Commutative Property of Multiplication3 7 = 21 7 3 = 21 Commutative Property of Addition3+5=8 5+3=8Changing the order yields a different answer:7 5 = +2 57=-2 10 5 = 2 5 10 = .5 3. The Fair Ms. Delores is taking her children and grandchildren to the fair. Tickets to get in cost $4 each. She paid for 5 grandsons, 2 daughters, and herself. How much did Ms. Delores spend on her grandchildrens tickets? Write an equation and show or explain how you solved the equation. How much did Ms. Delores spend on adult tickets? Write an equation and show or explain how you solved the equation. Using the two equations you already wrote, write a new equation to show the total amount Ms. Delores paid for tickets to go into the fair. 4. Weekend Laundry Im doing laundry. I discover $4 in each of three girls pockets. The next day, I find $5 in each of 2 different pockets in my husbands clothes.34+25= 5. Pay-Day Shopping Splurge15 + 2(7) + 10 Daijah-Tae went shopping. She bought a scarf for $15, two lip glosses for $7 each, and a cell phone case for $10. 6. Buffet Hot food is $7 per pound and salads are $4.50 per pound. You buy 5 pounds of hot food, 2 pounds from the salad bar, and three waters that are $1 each.5 7 + 2 4.5 + 3 1 7. Payroll CostsEmployees Hours Rate of Pay5 2 145 40 40$12.00 $15.00 $27.50 8. Does Order Matter in Mathematics?