All about rounding and place value
50
847
It's Seojoon's birthday today! His friends gave him 4 bags of gifts. Each bag has 6 gifts inside. How many gifts did he receive in total?
4 x 6 = 24
Which number does not belong to the group?
3, 8, 16, 24
16
698 + 254 = _____
Show your thinking using a strategy.
698 + 254 = 952
What is the value of 6 in 9647?
600
What is 214 decreased by 87?
214 - 87 = 127
The Happy Huskies wrote 3 chapters a day for two weeks. How many chapters did they write in all?
What is the missing factor?
____ x 3 = 27
9 groups of 3 is 27.
294 - 76 = ___
What strategy can you use to solve this equation?
294 - 76 = 18
Round 765 to the nearest 100.
800
14 and 79 together is?
15 + 79 = 93
There are 32 marbles in a box. Can you put them in equal groups? Give TWO possible answers.
16 x 2 or 2 x 16
8 x 4 or 4 x 8
32 x 1 or 1 x 32
What number is missing?
7, 14, 21, 28, 35, ____, 49
42
9 groups of ____ = 27.
What is the missing factor? Can you show an addition sentence that represents the equation?
9 x 3 = 27
9 + 9 + 9 = 27
I'm trying to round 83 to the nearest 10. What are the endpoints and midpoint?
BONUS: What is 83 rounded to the nearest 10?
Endpoints: 80 and 90. Midpoint is 85.
83 rounded to the nearest 10 is 80.
Use the digits 3, 5, 6, and 7 to make two 2-digit numbers with the greatest sum. You can only use each number once.
75 + 63 = 138
73 + 65 = 138
Ms. Thomas has fostered 28 huskies. She wants to share the dogs equally between 7 homes? How many dogs are in each home?
4 dogs in each home (7 groups of 4 = 28)
What is our 2nd Math agreement?
Perseverance
Lily puts donut on a tray. She puts 3 rows of donuts with 6 in each row. Can you draw an array, write a multiplication and addition sentence to represent the number of donuts?
3 x 6 = 18
3 + 3 + 3 + 3 + 3 + 3 = 18
If I am rounding 350 to the nearest 100, what are my endpoints?
BONUS: What is 350 rounded to the nearest 100?
Endpoints are 300 and 400.
350 rounded to the nearest 100 is 400.
Use the digits 3, 9, 4, and 7 to make two 2-digit numbers with the greatest difference. You can only use each number once!
97 - 34 = 63
Ms. Jeng brought in 3 juice boxes for third grade to have as a reward. Each juice box has 12 juice pouches. There are 70 third graders. How many more juice pouches does Ms. Jeng need?
34 juice pouches
4 groups of 3 is 12.
Can you make a word problem that represents this equation?
Ms. Jeng collected 12 Starbucks stickers. She shared to her 4 friends. How many stickers did each of her friend get?
Ms. Thomas baked 4 trays of cookies. Each tray had 3 cookies. How many cookies did she bake?
I am a three-digit odd number. My tens digit is thrice my ones digit. My hundreds is 4 less than my tens digit. Round me to the nearest 100 and you get 600. Who am I?
593