We’ve details about them and those. Now let’s learn to show two-digit numbers on an abacus.
What’s an abacus?
Abacus is a instrument or toy for counting. An abacus with two sticks.
We’re studying 2-digit numbers on an abacus, so this abacus consists of two sticks: the tens bar and those bar. Every stick can have as much as 9 beads.
one. get quantity 10
10 = 1 bead on tens bar
and 0 beads on a stick
So 10 = 1 ten and 0 ones.
That is the expanded type of 10.
The quantity could be written in phrases as ten.
2. get quantity 21
21 = 2 beads on tens bar
and 1 bead on a stick
So 21 = 2 tens and 1 ones.
That is the expanded model of 21.
The quantity could be written as twenty-one.
3. get quantity 35
35 = 3 beads on tens bar
and 5 beads on a stick
So 35 = 3 tens and 5 ones.
That is the expanded type of 35.
The quantity could be written as thirty-five.
4. get quantity 55
55 = 5 beads on the tens bar and 5 beads on those bar
So 55 = 5 tens and 5 ones.
That is the expanded model of 55.
The quantity could be written as fifty-five in writing.
2nd Grade Arithmetic Train
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