Show:
Even/Odd
Rounding to the nearest ten
Round to the nearest 100
Addition/Subtract then Estimate
Problem Solving
100
5+8
What is Odd
100
327
What is 330
100
327
What is 300
100
393+225
What is 600 or 620
100
Alex has 78 emails in her inbox. He deletes 47 of them. About how many emails does he have left?
What is 30
200
9+3 6+7
What is even and odd
200
28 81
What is 30, 80
200
456 987
What is 500 and 1000
200
327-148
What is 180 or 200
200
Daniel has 402 pieces in a building set. He uses 186 pieces to build a house. How many pieces does he have left over?
What is 216
300
9+5 7+7 3+6
What is even, even, odd
300
678 444 923
What is 680, 440, 920
300
123 678 345
What is 100, 700, and 300
300
346 421 +152 ______
What is 920 or 900
300
Alia used 67+38=105 to check her subtraction. Which math problem could she be checking? Mark all that apply 67-38 105-67 105+38 105-38
What is 105-67 and 105-38
400
2+10 4+8 9+3 6+6
What is even, even, even, even
400
994
What is D
400
347 658 222 804
What is 300, 700, 200, 800
400
789 -543 _____
What is 250, 245, 200
400
Sunnyday Elementary School is having it's annual Read-a-thon. The 3rd graders have read 573 books so far. Their goal is to read more than 900 books. What is the least number of books they need to read to reach their goal? Explain
What is 328.
500
11+5 13+4 8+8 2+6 1+4
What is even, odd, even, even, odd
500
312 119 121 64
What is 310, 120, 120, 60
500
911 824 555 309 842
What is 900, 800, 500, 300, 800
500
352-148=
What is 200
500
There are 318 fiction books in the class library. The number of nonfiction books is 47 less than the number of fiction books. Part A: About how many nonfiction books are there in the class library? Explain Part B: How many fiction and nonfiction books are there in the class library altogether?
What is 271. listen to explanation what is 589.