3 W9 Math Review: MONDAY

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Write 486 in expanded form

• 400 + 86
• 400 + 80 + 6
• 480 + 6

Round the number 285 to the nearest 10.

Round the number 285 to the nearest 100.

Round the number 637 to the nearest 10.

Round the number 637 to the nearest 100.

Round the number 291 to the nearest 10.

Round the number 291 to the nearest 100.

Find the sum of 914 and 878.

There are 164 chairs in the library. If the librarian removes 74 chairs, how many chairs are there now?

• 238 chairs
• 92 chairs
• 90 chairs