Since she bought 4 bags of 50 beads and 3 bags of 200 beads you only need to use two operations: multiply and add.
4 x 50 is 200
3 x 200 is 600
600 + 200 = 800
Mariah purchase 800 beads in total.
Answer:
= 
* 2 + 
Step-by-step explanation:
lets start with what we know.
the recipe calls for 2 
cups of yogurt. and Paolo doubles the recipe. so multiply the recipe for yogurt by 2
2 * 2 = 5 cups of yogurt.
the total of yogurt and oats is and we know how much yogurt we have so we subtract that from the total of both.
- 5 = 
the oats after doubling were cups so u divide it by 2
/ 2 = 
before doubling
