Practice quiz

• 4

• -4

• 5

• -5

(-20) + 11

• -9

• -19

• -31

• 3

• -3

• 12

• -12

Which of the following is correct?

• -5 + (-3) = -2

• -6 - 8 = -2

• -2 x (-11) = -2

102- (-52) = N

• 50

• -50

• 154

• -154

-48 - (-15) + 108 = N

• 171

• -171

• -75

• 75

Solve: James has a 15-peso debt to four of his friends. How much in all is his debt?

• ^-60 pesos

• ⁺60 pesos

• ^{Php 60 debt}

Emily is a diver. Today she descended to a depth of 40 feet below sea level. Then she swam up 10 feet and descended another 4 feet. How far below sea level is Emily now?

• -34 feet

• -54 feet

• 54 feet

• -26 feet

The water level in Marikina river rises 1.5 m from the 13-m original level. Then it drops by 2 m. What is the final water level of the river?

• 14.5 m

• 11 m

• 16.5 m

• 12.5 m