Reading 6-digit numbers; adding multiples of thousands mentally (4th grade math)

In this video, we continue exploring large numbers with 6 digits. I show how to read them. Then we add and subtract multiples of 1000 using mental math (e.g. 300,000 + 60,000).

You can do do practice exercises for place value online at this link.

In the video below, we practice writing six-digit numbers when their "parts" are given. This is similar to the expanded form of a number but the parts are in scrambled order. It makes it easy when you think of the entire thousands separately, and the rest separately.

See also

Place value — free online practice

Rounding and Estimating with Large Numbers — video lesson

Math Mammoth Grade 4 curriculum

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