Decimals Real World Math: Candy ShopMeets Grade 3 Common Core Math Standards: Use place value understanding and properties of operations to perform multi-digit arithmetic.1. Rounding decimals to the nearest tenth. CCSS.MATH.CONTENT.3.NBT.A.12. Multiplying one digit numbers by multiples of 10. (i.e. 4 x 40)CCSS.MATH.CONTENT.3.NBT.A.33. Choosing the lowest number of coins to pay for an amount. When I was teaching students in a homeschool setting, I tried as much as I could to get the students out