Harder addition of 2 and 3-digit numbers

Harder mental addition of 2 and 3-digit numbers. How many can you answer in a minute?

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Add a multiple of 1,000 to a 6-digit number. How many can you answer in a minute?

Add a multiple of 10,000 to a 6-digit number. How many can you answer in a minute?

Add a multiple of 100,000 to a 6-digit number. How many can you answer in a minute?

Add the decimal numbers together. How many can you answer in a minute?

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