Round Part 1
Emily rounded the number of rubber ducks entered in a race to the nearest hundred. She says there are about 700 rubber ducks entered in the race. Which of these could be the number of rubber ducks entered in the race? 783 or 671
671
What is 246 rounded to the nearest 10?
250
There are 178 fourth graders and 225 fifth graders on the playground. What is the total number of students on the playground?
403 students
A pet store has 4 fish tanks of the same size. A worker puts 10 liters of water in each fish tank. What is the total number of liters of water the worker puts in all of the fish tanks?
40
The number is written as the sum of the values of its digits.
What is 2,876 rounded to the nearest hundred?
2900
What is 65 rounded to the nearest 10?
70
861 = 480 + W
381
Expanded form of 198
100+90+8
The number written as a group of digits.
Standard Form
What is 33 rounded to the nearest 10?
30
588 - V = 200
388
What comes next in the pattern? 4, 7, 10, 13,
16
Numbers can be added in any order and the sum will stay the same.
Commutative Property of Addition
What is 342 rounded to the nearest 100?
300
80 × 4 =
320
Mica has gumballs. He gives all of them to friends. Each friend gets the same number of gumballs. Which expression can be used to find the number of gumballs Mica gives each friend?
35 ÷ 7
The result of subtracting numbers.
Difference
What 138 rounded to the nearest hundred?
100
On Saturday, 353 people attended a school play. On Sunday, 489 people attended the school play. Which expression will give the TOTAL number of people who attended the play on Saturday and Sunday rounded to the tens place?
350 + 490
?÷ 12 = 7
84
George had 13 music albums on his computer. If each album was 36 minutes long, which expression shows about how many minutes of music he had?
A. 20 × 40
B. 10 × 30
C. 10 × 40
D. 20 × 30
C. 10 × 40
The value of a digit in a number based on its location.
Place Value