# A total worth checking


## Child direction

Can we make a stock note that someone else can trust? Pick one route. Show what the numbers mean, try a way, then check one result. You can stop after a useful part.

## Purpose

Join like whole counts using place-value partitioning.

## Complete fictional source

Fictional badge studio: 612 blank badges arrive in one parcel and 243 in another. Every badge is counted once. How many badges are available?

## One own invitation

For 304 + 152, give a total and one way to check its parts.

## Access

Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.

## Routes


1. 
### Id

A

### Title

Small card repair

### Complete task

A fictional game has 42 clue cards, then 15 arrive. Make a total note using tens and ones.

### Entry or access

Return to two broad tens and three ones plus one ten if needed.

### Access

Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.


2. 
### Id

B

### Title

Badge maker

### Complete task

Use the 612 and 243 badge parcels. Compare partitioning with adding 200, then 40, then 3 to 612.

### Entry or access

Use labels rather than 855 loose marks.

### Access

Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.


3. 
### Id

C

### Title

Archive upgrade

### Complete task

A fictional archive joins 2436 and 1523 cards. Show two compatible partitions.

### Entry or access

Check thousands/hundreds entry before this larger route.

### Access

Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.