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.
Day
54
Id
H04
Notice
Ordinary optional home practice, not unseen assessment or proof a child actually handled stock. Suggested 5–12 minutes, unpiloted; stop after a useful part.
Numbered moves
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Read the stated source and choose paper, description or usual communication. Use 30−8 first if regrouping needs teaching.
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Try one own way before the grown-up model. Keep your values and unit labels.
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Grown-up separate practice possibility: Rename 102 as 9 tens 12 ones; subtract 3 tens 8 ones=64; check 64+38=102.
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Receive one available explanation or check. Ask whether to keep, change, pause or finish; another example is optional.
Purpose
Keep a left-count note.
Routes
Instruction
Use 30−8 first if regrouping needs teaching.
Name
A small beginning
Instruction
Keep a left-count note. Use complete provided source and label the answer unit.
Name
Make the useful note
Instruction
Choose a different whole count within 0–200 that keeps the result nonnegative. Restate all conditions and check the new result; the original worked answer cannot fill it.
Name
Change one condition
Complete source
A pretend tray has 102 labels and uses 38.
Title
A tray after use