Question

1. A period called ___________ is used for writing a 6-digit number.
2. The greatest 5- digit number using the digits 2,1,3,7,8 is_____________
3. When 1 is subtracted from a number, the difference is the __________ of the number.
4. When 0 is added to a number , the sum is the ______________.

Answer 1

Step-by-step explanation:

1.Thousands

2.78321

3.one less than that

4.same number if 18+0=18 only

Answer 2

1. Thousands
2. 87,321
3. Predecessor of number ( - 1, Suppose 24 - 1 = 23 )
4. The number is same. ( Suppose 23+0 = 23 )

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