Rounding
Round to the nearest hundred:
26
30
Round to the nearest ten to estimate:
766-492
770-490=280
What property of addition is shown below:
90 + 0 = 90
Identity
Hadeel says 247 rounded to the nearest hundred is 300. Is she correct? Why or why not?
No because it would round to 200
What was Mrs. Palladino's maiden name?
Buoye
Round to the nearest 10:
764
760
Round to the nearest hundred to estimate:
891-686
900-700=200
What property is shown:
53+67=67+53
Commutative
Will has $236. Dylan has $289. Do Will and Dylan have more than $600 in all? Estimate to solve.
No because 236 would round to 240 and 289 would round to 290. 240+290=$530
What's Ms. Wagner's dog's name?
Ruby
Round to the nearest ten to estimate:
649-487
650-490=160
Round to the nearest hundred to estimate:
286-189
300-200=100
What property of addition is shown below:
(8+2)+3=8+(2+3)
Associative
Brooks had 80 pieces of candy. He gave 23 pieces to his brother and 24 pieces to his sister. How many pieces does Brooks have left?
33 pieces of candy
What is our classroom number?
28
Round to the nearest hundred to estimate:
167+27
200+0=200
Round to the nearest hundred to estimate:
403+179
400+200=600
Write a new equation using the associative property:
3+(6+9)
(3+6)+9
One week Amelia earned $436, and the next week she earned $254. If Amelia's goal was to earn $550, by about how much did she exceed her goal?
440+250=690
690-550=140
she exceeded her goal by about $140
What is the highest place value this number goes to:
98,395
ten thousands
Round to the nearest ten to estimate:
138+435
140+440=580
Round to the nearest ten to estimate:
644+172
640+170=810
Write a new equation using the commutative property:
37+89
89+37
Demetrio has 725 water balloons. He dropped 138 water balloons. About how many water balloons does Demetrio have left?
About 600
Name two organisms from the Life Cycle Science Activity
Eastern Bluebird, Bull Frog, Bean Sprout