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How would you add

How would you add. 0.35 + 0.25?. In this lesson you will learn how to add decimals by using base-ten blocks. 123. Hundreds. Tens. Ones. 3 single units = 3. 2 groups of ten = 20. 1 group of 100 = 100. Hundredths. Whole Units (Ones). Tenths. 1.23. 1 Whole Unit (Ones).

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How would you add

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  1. How would you add 0.35 + 0.25?

  2. In this lesson you will learn how to add decimals by using base-ten blocks.

  3. 123 Hundreds Tens Ones 3 single units = 3 2 groups of ten = 20 1 group of 100 = 100

  4. Hundredths Whole Units (Ones) Tenths

  5. 1.23 1 Whole Unit (Ones) 3 Hundredths 2 Tenths

  6. 0.35 + 0.25 Smart estimate: ≈ 0.25 0.35 = 0.25 + 0.25 + Around 0.50

  7. This is a reasonable answer because it is close to our smart estimate of 0.50 0.35 + 0.25 + 0.35 + 0.25 0.60

  8. You have 2 ropes that are 1.15 feet and 2.06 feet. Together how long are they? This is close to our smart estimate + Smart estimate: 1.15 ≈ 1.25 + 2.06 ≈ +2.00 A little more than 3.25 1. 15 + 2.06 3. 21

  9. In this lesson you have learned how to add decimals by using base-ten blocks.

  10. Susan is doing a science experiment and adds 3.15 liters of water to 2.19 liters of water. Estimate how much water she has and then solve using base-ten blocks.

  11. Estimate and then use base-ten blocks to show how to solve this problem. Then explain your work. • Roberto bought 2.15 lbs. of apples and 3.06 lbs. of oranges. How many lbs. of fruit did he buy?

  12. Estimate and then use base-ten blocks to show how to solve this problem. Then explain your work. • Susie collected 1 dollar, 3 dimes, and 15 pennies on Monday and 2 dollars, 4 dimes, and 8 pennies on Tuesday. How much money did she collect?

  13. Use base-ten blocks to find the answer to these problems: 3.15 + 2.09. C. 5.19 B. 5.24 A. 5.14 Jose has a poster that is 2.25 feet long and another one that is 1.48 feet long. What is their total length? C. 3.68 feet B. 3.63 feet A. 3.73 feet

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