SALTA 4th grade

504,054 4,450 505,045 44,500 a. Use the words “ten times” to tell how you ordered the two smallest numbers using words, pictures and numbers.

2. Olivia made the number 506,890 with cards.

Step A Write Olivia's number in word form.

Step B Olivia removed the card with the five on it. Explain how this would change the word form of the number. Use what you know about numbers and place value in your explanation. Use words and/or numbers in your explanation.

(DOK 1)

(DOK 3)

4.NBT.3

Round 345,782 to the nearest: 10 100 1,000 10,000 100,000

On Saturday, 45,672 people visited Hogle Zoo. Sam and Dee both estimated how many people were there. Sam said that about 45,000 people visited the zoo on Saturday, and Dee said that about 46,000 people visited the zoo on Saturday. Who rounded the number of visitors correctly? Use a number line to justify your answer.

(DOK 3)

(DOK 1)