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Numbers & Math · Full game guide

Target24

Build a route from number cards to a target. Higher levels add cards, operations, and solution paths that require more planning.

Target24 is a make-the-target card puzzle. Your child combines two number cards with an available operation and replaces them with the result. Every move changes the choices that remain. The same combine-and-replace rule continues from a direct two-card calculation to four-card plans, nested routes, and exponent puzzles.

One rule across 85 levels
Combine two cards, replace them with the result, and finish on the target.
New solvable boards
The level changes the cards, target, available operations, number of moves, and how many routes can work.
No countdown
The child can inspect the calculation history, undo a move, reset the same board, and try another plan.
Level range
Levels 1-85 · Preschool through Advanced Challenge
The complete move

See one complete Target24 puzzle

In the app, the child selects two cards and an operation. Their result replaces both cards. They keep combining until one card remains; it must equal the target.

  1. 1

    Choose two number cards

    Both selected cards will be used in the next calculation.

  2. 2

    Choose an available operation

    The result replaces those two cards, changing every move that remains.

  3. 3

    Reach the target

    Use every starting card exactly once and finish with the target value.

Where this example comes fromTarget24 app problem builder
Example levelGrade 5 · Level 30 of 85
Target24 Problem screen. Make 24 from 1, 5, 6, 7

This example stays the same on the website so you can compare it. The app creates new problems during play.

One accepted route
  1. 5 × 6 = 30
  2. 7 − 1 = 6
  3. 30 − 6 = 24
How the app builds solvable puzzles

Six puzzle-building routes behind one game

Target24 uses one combine-and-replace mechanic. The app can build solvable boards around six genuinely different routes; these are ways to construct a puzzle, not six extra game types.

01 / 6

Direct combinations

Combine values directly to reach the target.

What changes

A two-card sum becomes a four-card route with several possible merge orders.

Direct combinations · Later challenge · Level 21 The child is viewing the task before submitting an answer.

Read this exact example

Direct combinations · Later challenge · Grade 4 · Level 21 of 85

What the child is solving
Make 24 from 3, 7, 7, 7
What counts as correct
(3 + 7) + (7 + 7)
How to read this screenshot

The child is viewing the task before submitting an answer.

Choose an example to compare
Where this example comes fromTarget24 app problem builder
Example levelGrade 4 · Level 21 of 85
Target24 Problem screen. Make 24 from 3, 7, 7, 7
One board from first move to retry

The attempted route stays visible after a miss

The same Level 30 board shows how a solvable puzzle appears, how a legal route can still miss, what remains visible, and how the child can retry.

  1. 1

    A solvable board appears

    The app chooses cards, a target, and the available operations for this level.

  2. 2

    A legal route can still miss

    Each merge may follow the rules while the final card ends away from the target.

  3. 3

    Reset restores the same cards

    The child can inspect the calculations, undo, or restore the original board and try a different order.

Where this example comes fromTarget24 app problem builder
Example levelGrade 5 · Level 30 of 85
Target24 Wrong-answer feedback. Make 24 from 1, 5, 6, 7
This game does not provide a per-problem explanation.
How the challenge changes

What genuinely changes across the full level path

The comparisons add new rules, operations, representations, interactions, and reasoning steps. Larger numbers or longer item lists alone are not treated as proof that a challenge is harder.

Preschool · Level 1 of 85

Direct combination

2 + 4

The Level 1 example reaches a small target with one direct addition.

Grade 5 · Level 30 of 85

Build a useful factor

(5 × 6) − (7 − 1)

The Level 30 example must create a factor before the remaining calculations can reach the target.

Advanced Bridge · Level 66 of 85

Nest one result inside another

(9 − (7 ÷ 2)) × 6

The Level 66 example uses a quotient inside a later factor, so merge order matters across the full route.

Olympiad / Honors Synthesis · Level 81 of 85

Build an exponent route

11 ^ (3 − (9 ÷ 9))

The Level 81 example must create and use an exponent under the highest-level operation rules.

Why this practice matters

What the child is practising in the visible task

These are bounded practice goals tied to the actions shown above, not promises that one game replaces teaching or proves mastery.

Notice number relationships

Factor pairs, differences, and useful intermediate values are visible in every successful route.

Plan several moves

Using one pair of cards removes those choices, so the child must consider what the result enables next.

Change strategy after a miss

The same cards return after an unsuccessful route, making a different order or operation directly testable.

This guide and the Braincove app

Fixed website examples, fresh app practice

The iPhone screenshots in this guide show reviewed examples checked against the app's current problem and answer rules. Use the controls to compare exact app states; the screenshots stay fixed so families can inspect them. At launch, the app will create new practice at the child's own level. Viewing this guide does not change app progress or earn anything toward a Screen Time unlock.

Daily browser game

A separate limited browser puzzle. It is not a generated app session that follows the child's full 85-level progression, and it awards no access points.

Try today's browser game

Full Braincove app at launch

Fresh Target24 boards follow the child's level. Parents can change the number of puzzles in a session and choose whether eligible completed app sessions contribute toward the Screen Time unlock rules they set. Core practice can continue through a temporary connection gap; family sync, Daily, homework, and cross-device updates still need connectivity.

Get the app launch email