To make a hundred, the ones make ten and the tens make nine.
To make a hundred, the ones make ten and the tens make nine.
Fill the ones row first, and it trades for a ten. Then fill the tens row, and it trades for one hundred.
On a number line you can see it too: hop to the next ten, then hop the rest to one hundred.
Ones make ten, tens make nine, and the carry finishes the hundred.
These are some of the questions on the sets. The printable sheets have more, with the bead frame drawn for each, and an answer key.
55. 5 + 5 = 10 ones, and 4 + 5 = 9 tens, with the carried ten that makes 100.
67. 3 + 7 = 10 ones, and 3 + 6 = 9 tens, with the carried ten that makes 100.
73. 7 + 3 = 10 ones, and 2 + 7 = 9 tens, with the carried ten that makes 100.
81. 9 + 1 = 10 ones, and 1 + 8 = 9 tens, with the carried ten that makes 100.
Ask a grown-up to put some coins on the table, between twenty and ninety. Say how many, then count out how many more make a hundred. First make the ones into a ten, then the tens, and check it together.
Put some coins on the table, between twenty and ninety, and ask how many more make a hundred. Check it together by counting up.
