Grade 6 Skill Standards: CCSS 6.EE.A.2.c

Operations Mastery Challenge (Grade 6)

The capstone mixes it all: order of operations, brackets, choosing operators, and working backward — often in two steps. The skill is fluency: reading what's asked, picking the right tool, and checking your answer by re-evaluating.

What it is

Understanding operations mastery challenge

The capstone mixes it all: order of operations, brackets, choosing operators, and working backward — often in two steps. The skill is fluency: reading what's asked, picking the right tool, and checking your answer by re-evaluating.

Key Idea

The capstone mixes it all: order of operations, brackets, choosing operators, and working backward — often in two steps. The skill is fluency: reading what's asked, picking the right tool, and checking your answer by re-evaluating.

Worked Example

Seeing it in action

1
Worked example

Evaluate (2 + 4) × 3 − 5.

Brackets first: 2 + 4 = 6. Then ×3: 18. Then −5: 13.

Visual model
0 13 18 (2+4)×3−5

Choose the right operation tool and check the result.

Interactive Check

Try a few

(10 − 4) ÷ 2 + 1
Answer: 4
3 × (2 + 5) − 4
Answer: 17
20 ÷ (2 + 2) × 3
Answer: 15

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