Subtracting integers

6 - (-4) can be rewritten as

• 6 + (-4)

• 6 + (+4)

(-10) - 9 can be rewritten as

• (-10) + (-9)

• (10) + 9

8 - (-20) can be rewritten as

• 8 + (-20)

• (-8) + 20

• 8 + (+20)

7 - 9 can be rewritten as

• 7 + (-9)

• (-7) + (-9)

• 7 + 9

- (-20) is the same as

• (-20)

• +20

Try this challenge. - - (-20) would be

• +20

• -20

0 - 45 can be rewritten as

• 0 + (-45)

• 0 + 45

(-20) - 10 can be rewritten as

• (-20) + 10

• (-20) + (-10)

3 - (-3) can be rewritten as

• 3 + (-3)

• 3 + (+3)

4 - (-4)

• 8

• 0