Term B · Chapter 8 · consolidation
Practice B
Original cumulative chapter practice to consolidate taught ideas.
Original cumulative chapter practice to consolidate taught ideas. Solutions are available as revealable feedback and in a separate complete answer key. No answer submissions or accounts are required.
Assessment · 18 questions
Questions
Show your thinking; use diagrams when they help. Do not open solutions during your first attempt.
Check your work: Finish the problems first, then ask a parent or instructor to review them with the separate answer-key copy.
- A1
Compute 6 × 5. Explain a strategy using a known fact.
- A2
Compute 7 × 7. Explain a strategy using a known fact.
- A3
Use two useful multiplication facts to work out 7 × 6. What is the product?
- A4
Each tray holds 6 counters. How many full trays are required to arrange 48 counters?
- A5
Compute 8 × 5. Explain a strategy using a known fact.
- A6
Compute 9 × 4. Explain a strategy using a known fact.
- A7
Use two useful multiplication facts to work out 8 × 7. What is the product?
- A8
Each tray holds 8 counters. How many full trays are required to arrange 48 counters?
- A9
Find 6 groups of 3. Can you use 5 groups plus one more?
- A10
Find 7 groups of 10. Can you use 6 groups plus one more?
- A11
Explain how splitting 6 equal groups of 5 helps you find their total.
- A12
30 counters are shared equally into 6 groups. How many counters are in each group?
- A13
Find 8 groups of 3. Can you use 7 groups plus one more?
- A14
Find 9 groups of 3. Can you use 8 groups plus one more?
- A15
Explain how splitting 9 equal groups of 3 helps you find their total.
- A16
27 stickers are arranged in complete groups of 8. How many complete groups and how many stickers remain?
- A17
An array has 7 rows of 4 dots. A student says turning it creates 4 more dots. Explain the error and find the total.
- A18
Without counting individual counters, show two different decompositions for 6 × 6, and explain why both work.