Mathematics 2 ESO – Unit 1 INTEGERS page 6 Activity 10 - ESOBook

Mathematics 2 ESO – Unit 1 INTEGERS page 6 activity 10

a) Remember, similar signs… POSITIVE, different signs… NEGATIVE!

Watch the video on “integers – multiplication and division – examples” and solve:

I) 3 • 3
II) (-3) • 3
III) (-3) • (-3)
IV) 2 • (-8)
V) 3 • (-3)
VI) (-12) • 2
VII) (-1) • (-10)
VIII) 5 • (-6)
IX) 10 • 56
X) (-1) • (-6)
XI) (-9) • 9
XII) 6 / 6
XIII) 4 / (-2)
XIV) (-8) / 8
XV) (-20) / (-10)
XVI) 8 / (-2)
XVII) (-12) / 2
XVIII) (-10) / (-1)
XIX) 52 / (-6)
XX) (-20) / 4
XXI) 34 / 34
XXII) (-18) / (-9)

b) Watch the video on “Multiplying and Dividing Integers using Triangle”, draw a “sign triangle” and use it to solve:

I) 4 • (-6)
II) (-7) • (-10)
III) 5 • (-8)
IV) (-10) • (-50)
V) (-3) • (-20)
VI) (-9) • 11
VII) (-2) • 5
VIII) (-2) • (-56)
IX) 6 • 100
X) 1 • (-789)
XI) (-1) • 842
XII) 42 / (-6)
XIII) (-70) / (-5)
XIV) 56 / (-8)
XV) (-100) / (-50)
XVI) (-30) / (-20)
XVII) 789 / (-1)
XVIII) 842 / 2
XIX) (-99) / 11
XX) (-20) / 5
XXI) (-256) / (-8)
XXII) (-60) / (-15)

c) Bob receives 5 € from each of his 5 aunties. How much money has Bob?

d) Peter owes 12 € to each of his 7 friends. How much money has Peter?