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Add and Subtract Tens
Let's find the sum of 68 and 70.
68 + 70 = ?
Here,
68 can be written as 6 tens and 8 ones.
70 can be written as 7 tens.
So,
68 + 70 = 6 tens + 8 ones + 7 tens
Now, add tens.
6 tens + 8 ones + 7 tens
= (6 tens + 7 tens) + 8 ones
= 13 tens + 8 ones
= 138
So, 68 + 70 = 138.
ds
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Help
The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.