Khan Academy
Khan Academy: Understanding Moving the Decimal
Give the number of tens a number is being multiplied or divided by when the decimal is moved to the left or right. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Multiplying Decimals 3 (Standard Algorithm)
Practice multiplying two numbers that are written to the tenths, hundredths, or thousandths place. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.