Keep Learning is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...

When subtracting decimals remember to keep the decimal points in line with each other. You can add zeros after a decimal point without affecting its value, so \({2}\) is the same as \({2.00}\). David ...

Decimal values are parts of whole numbers, including tenths, hundredths and thousandths. You can add and subtract decimal numbers in the same way as whole numbers using place value charts. You can put ...

My last column introduced the concepts underlying BCD (binary-coded-decimal) representations. In particular, we considered unsigned versus 10s-complement versions of BCD numbers. In this column we are ...

Want to help your fifth-grader master math? Here are some of the skills your fifth-grader will be learning in the classroom. Explain or illustrate how you solved this problem. Tip: Highlight ...

In fourth grade, students focus most on using all four operations - addition, subtraction, multiplication, and division - to solve multi-step word problems involving multi-digit numbers. Fourth-grade ...