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Solve each problem.

1. -199 minus +219 equals n, find the value of n.

2. +438 diminished by -290 is m, find the value m.

3. Find the difference between +128 and -318.

4. Subtract the sum of +429 and 429 from +429.

5. From the sum of +510 and +319, subtract -330.

6. The sum of two integers is -398. If one of the integers is +298, find the other
integer.

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Sagot :

Answer:  -418, 728, 446, -429, 1159, -696

Step-by-step explanation:

1. [tex]n = -199 - 219 = \boxed{-418}[/tex].

2. [tex]m = 438 - (-290) = 438 + 290 = \boxed{728}[/tex].

3. [tex]128 - (-318) = 128 + 318 = \boxed{446}[/tex].

4. The sum of 429 and 429 is [tex]429+429 = 858[/tex]. We need to subtract this from 429, so [tex]429 - 858 = \boxed{-429}[/tex].

5. The sum of 510 and 319 is [tex]510+319 = 829[/tex]. Subtracting -330, we get [tex]829 - (-330) = 829 + 330 = \boxed{1159}[/tex].

6. Call the unknown number "[tex]\star[/tex]". Then [tex]\star + 298 = -398[/tex], so [tex]\star = -398 - 298 = \boxed{-696}[/tex]. (Think about it.)

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