Question

Marty bought a shirt for $9.50, sandals for $15.50, shorts for $11.75, and sunscreen for $5.25. Use mental math to find the total amount he spent. Explain.

Answer 1

Marty spent $42. How I got this answer is I added 11.75+5.25 first, equaling 17. Then I added 15.50 to 17, equaling 32.50. Finally I added 9.50 to 32.50 equaling 42.

Explanation:

9.50+15.50+11.75+5.25= $42

Answer 2

42

Explanation:

9.5+15.5=25. 11.75+5.25=17. 25+17=42. That should explain it. I hope this helps.