Day 010Quiz 2
I can apply the skills taught so far, show my reasoning, and check my answers.
Show what you know
Questions 1–1 review Grade 5 prerequisites (20%). The remaining 4 questions assess the current unit. Show your work, simplify exact answers, label units, and explain when asked.
Quiz
Begin with the review questions, then continue through the current-unit questions.
- Previous unit review
Use long division: 84 ÷ 3. Show the algorithm and check.
- Current unit
Use the standard algorithm: 3.07 × 8.6. Show your regrouping or division steps.
- Current unit
Use the standard algorithm: 1.31 × 4.1. Show your regrouping or division steps.
- Current unit
Use the standard algorithm: 3.2 ÷ 0.4. Show your regrouping or division steps.
- Current unit
A container has 0.795 kg of seed. Each bag holds 0.15 kg. How many bags can be filled?
Answers and reasoning
Reveal the teacher answer key
- 28
8 ÷ 3: write 2, subtract 6, remainder 2; bring down the next digit: 24 ÷ 3: write 8, subtract 24, remainder 0. Check: 3 × 28 = 84.
- 26.402
Compute the whole-number product and restore decimal places: 3.07 × 8.6 = 26.402.
- 5.371
Compute the whole-number product and restore decimal places: 1.31 × 4.1 = 5.371.
- 8
Multiply both numbers by 10: 32 ÷ 4 = 8. Check: 0.4 × 8 = 3.2.
- 5.3 bags
Multiply both numbers by 100: 79.5 ÷ 15 = 5.3. Check: 0.15 × 5.3 = 0.795.