In this video, I explain how to perform two-digit operations quickly using mental strategies. We'll cover **addition**, ...

Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the ...

Join Mrs. McCartney for an addition number talk with D.C.! Join Mrs. McCartney for an addition number talk with D.C.! Get ready to have some fun subtracting two-digit numbers with regrouping and ...

When you are solving an addition calculation with a two-digit number, you need to think about tens and ones. A place value chart can help you to see the value of each digit in a number. For example, ...

Division is the opposite of multiplication. It's when a number is shared into another number. Knowing your times tables can be very useful when multiplying or dividing. Let’s take a look at some ...