Integers, SM-Bank 063

Evaluate the following products. (3 marks)

`2xx-3xx-1xx-5`
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`-1xx-2xx-4xx-5`
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`3xx-2xx-2xx-1xx-1`
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a. `-30` b. `40` c. `12`

Show Worked Solution

`text(Remember:)\ `	`-xx+ `	`=-`
	`+xx-`	`=-`
	`- xx -`	`= +`

a. `2xx-3xx-1xx-5`	`=-6xx-1xx-5`
	`=6xx-5`
	`=-30`

b. `-1xx-2xx-4xx-5`	`=2xx-4xx-5`
	`-8xx-5`
	`=40`

c. `3xx-2xx-2xx-1xx-1`	`=-6xx-2xx-1xx-1`
	`=12xx-1xx-1`
	`=-12xx-1`
	`=12`