Decimals Unit Assessment Tomorrow

Math:

Students have been reviewing decimal concepts this week in preparation for their assessment tomorrow. Today they worked on decimal division estimation.

Tomorrow's assessment will include:

• front-end and relative size (rounding) estimation
• decimal order of operations
• decimal operations (adding, subtracting, multiplying, and dividing)
• decimal word problems

Practice Questions:

Estimation

1. Using front-end estimation 0.238 is approximately 0.2. Estimate 0.568 using front-end estimation.

2. Which number is closer to 73.6     a) 73    or    b)74

3. Round 67.894 to the nearest hundredth

4. Round 67.894 to the nearest tenth

5. What is the sum of 56.2 + 612.1 using front-end estimation?

6. What is the sum of 56.2 + 612.1 rounding the the greatest place value?

BEDMAS (order of operations) 

7. 2 + 2 x 2 - 2 / 2                       Note: / means divide

8. 4.5 / 3 x (5.3 - 3.2) 

9. 9.4 + (1.5 + 6.5) x 6.7 - 4.5

Word Problems

10. Sandy spent $39.46 on groceries at a store. The cashier gave her $1.46 in change from a $50 bill. How much change should the cashier have given Sandy?

11. Jack bought 8 drill bits for $1.22 each, 10 washers for $0.11 each, and 2 hammer for $4.59 each.

a) estimate the total cost and then calculate it exactly. 

b) how much was his change from $50?

For more similar word problems go to this link

d 2 hammers for $4.59 each.

a.

Estimate the total cost. Then calculate it exactly.

Remember:

• know/don't know (identify the key details and what the problem is asking)
• equation(s)
• solve
• sentence (not needed on multiple choice test)

Science:

Today students read about snails using information from this website http://www.kiddyhouse.com/Snails/

They discussed key ideas and answered questions about snails.

Tomorrow students will begin learning vocabulary for the upcoming Planet Earth Unit.