This document contains 9 sections of math problems involving calculating various operations such as multiplication, division, addition and subtraction of integers. Some problems include operations within parentheses or brackets that must be solved first before the overall calculation. The problems range from single-step calculations to multi-step word problems requiring setup and solution of multiple operations in sequence.

1. UNIT 04 December
1. Calculate.
a) 𝟑𝟑 ∙ (−𝟐𝟐) = b) 𝟒𝟒 ∙ (+𝟓𝟓) = c) 𝟖𝟖 ∙ (−𝟔𝟔) =
d) −𝟔𝟔 ∙ (+𝟑𝟑) = e) −𝟐𝟐 ∙ (−𝟒𝟒) = f) −𝟔𝟔 ∙ (+𝟑𝟑) =
g) (+𝟑𝟑) ∙ (−𝟖𝟖) = h) (−𝟗𝟗) ∙ (−𝟑𝟑) = i) (−𝟓𝟓) ∙ (−𝟕𝟕) =
2. Calculate the integer quotient:
a) (−𝟖𝟖) ÷ (+𝟐𝟐) = b) (+𝟐𝟐𝟐𝟐) ÷ (−𝟏𝟏𝟏𝟏) = c) (−𝟏𝟏𝟏𝟏) ÷ (−𝟒𝟒) =
d) (−𝟒𝟒) ÷ (+𝟑𝟑) = e) (+𝟐𝟐𝟎𝟎) ÷ (−𝟕𝟕) = f) (−𝟏𝟏𝟏𝟏) ÷ (−𝟑𝟑) =
g) (+𝟑𝟑𝟑𝟑) ÷ (+𝟖𝟖) = h) (−𝟑𝟑𝟑𝟑) ÷ (+𝟗𝟗) = i) (−𝟒𝟒𝟒𝟒) ÷ (−𝟖𝟖) =
3. Calculate:
a) (+𝟑𝟑) ∙ (−𝟓𝟓) ∙ (+𝟐𝟐) = b) (−𝟒𝟒) ∙ (−𝟏𝟏) ∙ (+𝟔𝟔) =
c) (−𝟐𝟐) ∙ (−𝟕𝟕) ∙ (−𝟐𝟐) = d) (+𝟓𝟓) ∙ (−𝟒𝟒) ∙ (−𝟑𝟑) =
4. Calculate:
a) [(+𝟖𝟖𝟖𝟖) ÷ (−𝟖𝟖)] ÷ (−𝟓𝟓) = b) [(−𝟕𝟕𝟕𝟕) ÷ (−𝟐𝟐)] ÷ (−𝟕𝟕) =
c) (+𝟓𝟓𝟓𝟓) ÷ [(−𝟑𝟑𝟑𝟑) ÷ (+𝟔𝟔)] = d) (−𝟒𝟒𝟒𝟒) ÷ [(+𝟐𝟐𝟐𝟐) ÷ (+𝟑𝟑)] =
5. Calculate:
a) [(+𝟔𝟔) ∙ (−𝟒𝟒)] ÷ (−𝟑𝟑) = b) [(−𝟏𝟏𝟏𝟏) ∙ (−𝟐𝟐)] ÷ (+𝟔𝟔) =
c) (−𝟓𝟓) ∙ [(+𝟏𝟏𝟏𝟏) ÷ (−𝟑𝟑)] = d) [(−𝟓𝟓) ∙ (+𝟏𝟏𝟏𝟏)] ÷ (−𝟑𝟑) =
6. Calculate:
a) (−𝟑𝟑) ∙ [(−𝟐𝟐) + (−𝟒𝟒)] = b) (+𝟒𝟒) ∙ [(−𝟓𝟓) + (+𝟐𝟐)] =
c) (+𝟔𝟔) ÷ [(+𝟓𝟓) − (+𝟕𝟕)] = d) (−𝟐𝟐𝟐𝟐) ÷ [(−𝟔𝟔) − (−𝟐𝟐)] =
e) [(−𝟖𝟖) + (+𝟕𝟕)] ∙ (−𝟑𝟑) = f) [(−𝟗𝟗) + (−𝟑𝟑)] ÷ (+𝟔𝟔) =
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.4.3.1

2. UNIT 04 December
7. Solve:
a) 𝟓𝟓 ∙ (−𝟒𝟒) + 𝟐𝟐 ∙ (−𝟑𝟑) =
b) 𝟐𝟐𝟎𝟎 ÷ (−𝟓𝟓) − 𝟖𝟖 ÷ (+𝟐𝟐) =
c) 𝟐𝟐 ∙ (−𝟖𝟖) − 𝟑𝟑 ∙ (−𝟕𝟕) − 𝟒𝟒 ∙ (+𝟑𝟑) =
d) 𝟔𝟔 ÷ (+𝟐𝟐) + 𝟓𝟓 ∙ (−𝟑𝟑) − 𝟏𝟏𝟏𝟏 ÷ (−𝟒𝟒) =
8. Solve:
a) (−𝟖𝟖) ∙ (+𝟐𝟐) + (−𝟓𝟓) ∙ (−𝟑𝟑) =
b) (+𝟒𝟒𝟒𝟒) ÷ (−𝟖𝟖) − (−𝟑𝟑𝟎𝟎) ÷ (+𝟔𝟔) =
c) (−𝟐𝟐) ∙ (−𝟗𝟗) + (−𝟐𝟐𝟐𝟐) ÷ (−𝟑𝟑) − (−𝟔𝟔) ∙ (−𝟒𝟒) =
d) (+𝟐𝟐𝟐𝟐) ÷ (−𝟑𝟑) − (+𝟑𝟑) ∙ (−𝟓𝟓) − (−𝟔𝟔) ∙ (−𝟐𝟐) =
9. Solve:
a) 𝟏𝟏𝟗𝟗 − (−𝟑𝟑) ∙ [𝟓𝟓 − (+𝟖𝟖)] =
b) 𝟏𝟏𝟐𝟐 + (−𝟓𝟓) ∙ [𝟖𝟖 + (−𝟗𝟗)] =
c) 𝟏𝟏𝟐𝟐 − [𝟏𝟏𝟏𝟏 − (−𝟕𝟕)] ÷ (−𝟓𝟓) =
d) 𝟏𝟏𝟎𝟎 − (+𝟐𝟐𝟐𝟐) ÷ [𝟕𝟕 + (−𝟑𝟑)] =
e) (−𝟐𝟐) ∙ (𝟓𝟓 − 𝟕𝟕) − (−𝟑𝟑) ∙ (𝟖𝟖 − 𝟔𝟔) =
f) (𝟗𝟗 − 𝟔𝟔) ∙ (−𝟐𝟐) + (𝟏𝟏𝟏𝟏 + 𝟑𝟑) ÷ (−𝟒𝟒) =
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.4.3.2