Current location - Training Enrollment Network - Mathematics courses - What is the definition of approximate equality in primary school mathematics?
What is the definition of approximate equality in primary school mathematics?
About how much is equal usually means close to a whole ten, a whole hundred.

For example, 298+ 195≈300+200=500.

Is to think of 298 as 300.

There is also an approximate equality, that is, look at the last digit that requires precision and round it off.

For example, 2350≈2400 is accurate to a hundred.

0.235≈0.24 accurate to one percent.