Lesson 1: Basic Arithmetic Operators
In this lesson, we will learn basic arithmetic vocabulary in English and practice pronouncing numbers. Let's start with addition (сложение), subtraction (вычитание), multiplication (умножение), division (деление), as well as equations and inequalities (уравнения и неравенства).
Key vocabulary:
равно – equal / is equal to
минус – minus
умножить – times / (multiplied) by
разделить – divided by
больше (или равно) – greater than (or equal to)
меньше (или равно) – less than (or equal to)
Exercise 1
Read each mathematical expression out loud. Then, listen to the audio and repeat. Be careful – some words look the same as in Russian but sound different! You can also look at the translation of each sentence if you need to.
x = 3
2 + 2 = 4
14 + 25 = 39
543 + 359 = 902
1756 + 3568 = 5324
3 – 1 = 2
46 – 27 = 19
293 – 132 = 161
5306 – 897 = 4409
5 x 3 = 15
34 x 5 = 170
281 x 3 = 823
2065 x 46 = 94,990
10 / 2 = 5
12 / 4 = 3
835 / 167 = 5
43,652 / 2 = 21,826
x > 5
y > 76
z > 259
x < 3
y < 84
z < 121
x ≥ 2
y ≥ 97,541
z ≥ 12x – 13y
5x – 7 ≥ y + 77
x ≤ 4
y ≤ x + 3
z ≤ 5x – 7
2x + 1 ≤ y – 11