Mathematics

Yair Collins

26 March, 12:13

Which strategies can be used to solve this problem? Marcus bought books for his vacation. He bought a mystery book for $14, a fantasy novel for $25, and 3 biographies that cost $6 each. How much money did Marcus spend on the books altogether? Choose all answers that are correct. A. Translate into an equation. 14 + 25 + 6 = n B. Work backward. Start with $6 and add this amount to $25 and $14. Multiply the sum by 3 to get the amount Marcus spent. C. Use logical reasoning. Think that Marcus bought a total of 5 books. Multiply $6 by 3 to get the cost of the biographies. Add this amount to the cost of the two other books ($14 and $25) to get the total amount Marcus spent. D. Draw a diagram. Draw 5 rectangles to represent the 5 books Marcus bought. Put $14 in one rectangle and $25 in another rectangle. Write $6 in each of the remaining 3 rectangles. Add the 5 amounts together to get the total amount Marcus spent.