All four operations with negatives

Mrs. Savage deposits (depósito) $41.60 (إيداع) into her bank account on Wednesday. On Thursday, she pays (pagar) (يدفع) two bills for $17.15 and $26.85. What is her balance after (después) paying her bills?

• -$3

• -$ 2.40

• • +$3

• +$2.40

What is the mean ( الرقم المتوسط) (numero promedio) of

-3, -4, 5, -7, -10

• 5

• -5

• 3

• -3

What is the mean ( الرقم المتوسط) (numero promedio) of these numbers?

• -3.3 m

• -5.5 m

• -1.1 m

• 7.3 m

You buy (comprar) (يشتري) an item for $44.50. Then, you return (devolver) (استرجع) two items for $26.30 and $21.40. What is the difference (diferencia) (اختلاف) in cost?

• +$3.20

• -$3.20

• +$2.70

• -$2.70

What is the total (المجموع) score?

• 85

• -85

• 65

• -65

What is the mean ( الرقم المتوسط) (numero promedio)?

• -2.21 ft

• 2.21 ft

• -1.21 ft

• 1.21 ft

deposit (depósito) (إيداع)

withdrawal (retiro) (انسحاب)

• -$1279

• -$79

• $281

• $321

How do you calculate the mean?

cómo calcular el promedio

كيفية حساب المتوسط

• ADD all the numbers and DIVIDE by how many numbers there are

• ADD all the numbers and MULTIPLY by how many numbers there are

• SUBTRACT all the numbers and DIVIDE by how many numbers there are

• ADD all the numbers then SUBTRACT how many numbers there are

16.4 + (-3.8) - 2.7 =

• 9.9

• 15.3

• 22.9

• 8.7

• 2.2

• -4.8

• -5.2

• 4.2