In the video, how many 'tens' are there in the number 23?

There are two tens in the number 23.

In the video, how many 'ones' are there in the number 45?

There are five ones in the number 45.

The first step is to add the ones place: 3 ones + 5 ones = 8 ones.

The second step is to add the tens place: 2 tens + 4 tens = 6 tens.

Grade 6th Grade · Math · 45 min

I can add two-digit numbers accurately using different strategies.

Khan Academy · 2:33

Adding two-digit numbers without regrouping | Early Math | Khan Academy

3 key concepts

1
In the number 23, there are two tens and three ones.
2
When adding 23 + 45, first add the ones place: 3 + 5 = 8.
3
When adding 23 + 45, then add the tens place: 20 + 40 = 60, so the answer is 68.

11 questions · Multiple choice & Short answer

Quick comprehension check

“Add 32 and 56 using the tens and ones strategy shown in the video. How many tens and ones are in the total?”

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