Reduce 12/18 to lowest terms as a fraction

(a)  

200 to 400 is equivalent to (in lowest terms as a fraction or decimal)

(a)  

Round 2.7927 to the nearest hundredth

(a)  

Round 6.56789 to the nearest whole number

(a)  

Patrick claims that he can recite $$\pi$$   to the nearest ten thousandth which he claims is 3.1415. The number $$\pi$$  approximated to its first 10 digits is 3.141592653.

Did Patrick round correctly why or why not?

(A image has been provided to help you with place values).

Gertrude is baking a dozen pies for a church gathering. She knows a recipe that calls for 4 tablespoons of sugar and 2 cups of milk but this recipe only makes 1 pie. How many tablespoons of sugar and cups of milk will she need to make 12 pies?