5nbt7 More Place Value Ideas

Pull, Predict, and Find Out

• Pull 4 digit cards to make a number with two decimal places. Have students read the number.
• Reshuffle the cards and repeat.
• Ask students to estimate what the sum of the two numbers will be. Think-pair-share to share predictions.
• Find the sum of the numbers.
• Ask students to estimate what the difference of the two numbers will be. Think-pair-share predictions.
• Find the differences of the numbers.
• Compare predictions with actual results.

The Greater Sum

• Ask students to make a sum, from two numbers, that is greater than _(i.e. 50.5), equal to (i.e. 60.35)_, or less than ___(i.e. 42.53).
• Their numbers should be made with 4 digits with no less than 2 decimal places.
• Bring the class together to share solutions.
• Ask students to make a difference of two numbers with the same clues.

Word Problem Matching

• Have students match answers cards with word problem cards that are found on the Word Problem Matching Resource Sheet
• Bring class together to share findings.

Word Problems:
Pose the following problems. Have the students solve the problem independently. Discuss the answer.

• Davar purchased 6 folders at the school store. They cost $ .75 each. How much did he spend in all?
• Madeline purchased 8 songs on ITunes for $1.29 each. What was the total amount she spent?
• Aunt Mallory bought 4 Wiis for $210.94 a piece for each of her nephews. What was the total amount that she spent?
• Ask students . . . What equations could we use to solve this problem? (repeated addition and multiplication)
• Allow the students to use calculators to solve the problem both ways. Share answers and discuss the relationship between addition and multiplication. Discuss the placement of the decimal point with regard to dollars and cents.