Lesson 1.1.2 · Los Números
🔢 Numbers
From bargaining at the market to reading a bus number, numbers are non-negotiable. Master 0–20, the tens, then the patterns for 100s and 1,000s — pesos add up fast in Colombia.
Sub-lessons
Break this lesson into focused chunks. Each sub-lesson has its own Memory Lab — active recall, mnemonics, elaboration, interleaved review, and shadowing — scoped to just those words.
0 – 20
Memorize these cold. After 16, the pattern becomes diez-y-seis style.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Example sentences
Hoy estoy cero.
Today I feel 0.
Son uno en total.
That's 1 in total.
Quiero dos, por favor.
I want 2, please.
Mini-diálogo
Mi amigo es muy cero.
My friend is very 0.
Quiero uno, por favor.
I want 1, please.
Tens, hundreds, thousands
Colombian peso prices live in the thousands — get comfy with mil.
30
40
50
60
70
80
90
100
500
1,000
10,000 (≈ $2.50 USD)
Example sentences
Tengo treinta libros.
I have 30 books.
Son cuarenta en total.
That's 40 in total.
Quiero cincuenta, por favor.
I want 50, please.
Mini-diálogo
Son treinta en total.
That's 30 in total.
Quiero cuarenta, por favor.
I want 40, please.
Memory lab
Five research-backed techniques — active recall, mnemonics, elaboration, interleaving, and production — applied to this lesson's vocabulary. Your progress trains a spaced-repetition schedule under the hood.
Force the answer from memory before peeking. The struggle is the workout — that's the testing effect.
Recall from English
11
Practice exercises
Test what stuck. Multiple-choice and fill-in-the-blank — pulled live from this lesson's vocabulary.
70
8
7
17
treinta
19
Fill the blank
Son _____ en total.
That's 1 in total.
Fill the blank
Tengo _____ libros.
I have 30 books.
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