Remember: The top row counts hundreds. Add hundreds, tens and ones, each on their own.
Questions
1
Which number has four hundreds, no tens and six ones?
one hundred thirty-sixfour hundred sixthree hundred twenty-one
2
Which number has two hundreds, four tens and five ones?
two hundred forty-fivethree hundred twenty-onefour hundred fifty-seven
3
Which number has three hundreds, two tens and one one?
three hundred twenty-onefour hundred sixsix hundred thirty-five
4
Which number has six hundreds, three tens and five ones?
three hundred twenty-oneone hundred thirty-sixsix hundred thirty-five
5
Which one is not a good way to add?
💯adding hundreds to hundreds🌀adding hundreds to ones🔢adding tens to tens
6
Which row of the frame holds the hundreds?
🔝the top row⬇️the bottom row↔️the middle row
7
Which one is a good way to add?
🔢adding tens to tens🌀adding hundreds to ones
8
Ten ones make which one?
🪙one hundred🔟one ten🏔️one thousand
9
Ten tens make which one?
🏔️one thousand🪙one hundred🔟one ten
10
⬇️Does the bottom row hold the hundreds?
YesNo
11
Which one is a good way to add?
💯adding hundreds to hundreds🌀adding hundreds to ones
12
Which one is a good way to add?
🔘adding ones to ones🌀adding hundreds to ones
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Answer key · Set C
Adding three-digit numbers
1four hundred six
2two hundred forty-five
3three hundred twenty-one
4six hundred thirty-five
5adding hundreds to ones
6the top row
7adding tens to tens
8one ten
9one hundred
10No
11adding hundreds to hundreds
12adding ones to ones
Mark each answer, count the right ones and write the score on the sheet.