Question

3. Para encontrarmos o resultado de 300 – 650, podemos: a) efetuar 650 + 300 e manter o sinal do resultado b)efetuar 650 + 300 e inverter o sinal do resultado c) efetuar 650 – 300 e manter o sinal do resultado d) efetuar 650 – 300 e inverter o sinal do resultado

Answer 1

To find the result of 300 - 650, we can:

a) do 650 + 300 and keep the result sign

b) do 650 + 300 and invert the result sign

c) do 650 - 300 and keep the result sign

d ) perform 650 - 300 and invert the result sign

Explanation:

The correct answer is the letter D .

(perform 650 - 300 and invert the result sign)

300 - 650

300 is more than - 650 on the number line this is because of the negative sign of 650

so we can also write it as 650 - 300 and after getting the require result with put the negative sign to the result, so the result will be -350

Keep the sign of the number with the highest absolute value and subtract from it the lowest absolute value.

- (650 - 300)

Subtract the numbers.

- 350

therefore, the answer is d ) perform 650 - 300 and invert the result sign