Question

1)When adding two negative numbers, _________ the absolute value of the numbers and keep the negative sign.

add
subtract
change
2)When adding two different signed numbers, ________ the absolute values of the numbers and keep the sign of the number with the larger absolute value.

add
subtract
change
3)When subtracting, change the subtraction to addition and _______ the sign of the number being taken away

add
subtract
change
4)Which of the following would be a good estimate for -7.94 - 2.31?

-9
-5
-6
-10

Answer 1

1) add

2) subtract

3) change

4) -10

Explanation:

hope it helps

Answer 2

1) add.

for example -1 + -2 = - (||-1| + |-2||), which is -(1+2) or -3

2) subtract

for example 4 + -7 = -(||-7| + |4||), which is - |7 - 4| or -3

3) change
for example 3 - (- 2) = 3 + 2

4) -10

the sum is -10.25, which is closest to -10