
Number Realm
Mathematics

Companion: Digitot. A small fish whose scales are etched with tally marks. It counts its own bubbles as it swims.
Purpose
Math word problems and computation, answered in whichever format fits the question — typed numbers, a fraction's numerator and denominator, or a time picker for elapsed-time problems.
The science
Just like spelling, shaky number facts eat into the working memory a child needs for the actual reasoning in a word problem. Building procedural fluency — instant recall of facts and operations — is what lets a child spend their thinking on the structure of a problem instead of the arithmetic inside it. The timed, repeated format is deliberately built for this: it's spaced retrieval practice for the number sense that everything later in math is built on top of.
Read the full research behind this →Progression
Same ladder rule as every guild — a grade only unlocks the next once every question in it has been answered correctly. Full grade-by-grade DepEd source material is on the Curriculum pages.
Sample question
55 + 27 = ?
Answer: 82 ✓
Sample question
What is the next number in the pattern: 164, 153, 142, 131, ___?
Answer: 120 ✓
Sample question
Which number is greater: 410,559 or 696,345?
Answer: 696,345 ✓
Sample question
A train leaves at 3:15 PM and arrives 2 hours and 40 minutes later. What time does it arrive?
Answer: 5:55 PM ✓
Sample question
400.84 × 0.1 = ?
Answer: 40.084 ✓
DepEd basis
Curio earned & graduations
One companion, three stages — each unlocked by leveling up the Number Realm guild itself.

Digitot
Earned at guild level 5A small fish whose scales are etched with tally marks. It counts its own bubbles as it swims.

Sumray
Graduates at guild level 10Its tally-mark scales have multiplied into a puffed-up ledger of sums, bristling whenever a calculation comes up short.

Infinifin
Graduates at guild level 20A leviathan built from every number it has ever counted, so vast that some digits are still catching up to its tail.
What your child earns
Number facts that stop requiring finger-counting, and Digitot growing right alongside their fluency.
Related Learning Hall Guides
- Procedural Fluency: Why Math Facts Need to Be Automatic, Not Just Understood
- Grade 5 Mental Math: All Four Operations on Fractions, Plus Decimals and Ratio
- Grade 3 Mental Math: Building Real Multiplication Facts, Not Just Memorized Ones
- Grade 6 Mental Math: Making Sense of Fractions, Decimals, and Percents Together
- Grade 4 Mental Math: Building Real Multiplication and Division Fluency
