Use grouping symbols, exponents and symbols for add., subtr.,multipl.,and division with the digitale 1,9,8and 7 ( in that order)to form expressions.a.6 b.7 c.9

Question

PleASE respond

Answer 1

This is a question that wants you to create 3 expressions, using the same 4 digit, that provide three different answers using different operations and grouping symbols like parentheses.

For a.) Think in terms of  1 ___ 9 ____ 8 _____ 7 = 6

What operations can you put in the blank spaces to make this a true statement? Or how can you group them to alter the answer?

 

so for c.) 1 ____ 9 _____ 8 _____ 7 = 9 could be 1+9-8+7 = 10-8+7 = 2+7 = 9
 or it could be 1+9-(8-7) = 1+9-(1) = 10-1 = 9.

 

There are different possible answers.

 

a.) -1(9-8-7) = -1(1-7) = -1(-6) = 6

 

b.) 1-9+8+7 = -8+8+7 = 0+7 = 7

 

c.) -(1-9)+(8-7) = -(-8)+(1) = 8+1 = 9