Number Sense & Place Value
Round 684,921 to the nearest ten thousand.
Answer: 680,000
Without solving exactly, determine if the answer to:
398 × 6
will be closer to:
Explain.
Answer:
Closer to 2,000 because 400 × 6 = 2,400
Which is greater?
4/6 or 3/5
Answer:
4/6 is greater
(4/6 = 0.666…, 3/5 = 0.6)
A rectangle has:
If the width doubles, what happens to the area?
Answer:
New area = 120 sq cm
The area doubles.
A teacher bought:
Then she gave away 29 pencils.
How many pencils remain?
Answer:
8 × 14 = 112
112 − 29 = 83 pencils
What is the missing digit?
4_,782 rounds to 45,000.
Answer: 5, 6, 7, 8, or 9
A student solved:
248 ÷ 4 = 72
Find the mistake and solve correctly.
Answer:
Correct answer is 62
Which is greater?
5/6 or 7/9
Answer: 5/6
A square has a perimeter of 36 feet.
What is the side length?
Answer: 9 feet
A movie theater sold:
Tickets cost $6 each.
How much money was collected altogether?
Answer:
248 + 376 = 624
624 × 6 = $3,744
Order from least to greatest:
0.72, 0.207, 0.702, 0.27
Answer:
0.207, 0.27, 0.702, 0.72
A school has 1,248 students.
Students are placed equally into 6 grade levels.
Then each grade level is split equally into 4 classes.
How many students are in each class?
Answer:
1,248 ÷ 6 = 208
208 ÷ 4 = 52 students
Write two fractions equivalent to 6/9.
Answer:
2/3 and 12/18
A rectangle and a square both have a perimeter of 24 units.
Can they have the same area?
Possible Answer:
Yes.
A square with side length 6 has area 36.
A rectangle 5 × 7 also has perimeter 24 but area 35, so sometimes yes and sometimes no.
A baker made 1,200 cookies.
He packed them equally into 15 trays.
Then 18 cookies from each tray were sold.
How many cookies remain altogether?
Answer:
1,200 ÷ 15 = 80
80 − 18 = 62
62 × 15 = 930 cookies
Order from least to greatest:
0.8, 0.08, 0.18, 0.808
Answer:
0.08, 0.18, 0.8, 0.808
A company ships 3,456 cans equally into 8 trucks.
A student says the answer must be greater than 500 because 3,456 is a large number.
Do you agree?
Answer:
No.
3,456 ÷ 8 = 432
A bottle was filled to 7/10 of its capacity.
After drinking some water, 3/10 remained.
How much water was consumed?
Answer: 4/10 or 2/5
A rectangular playground has:
A student says the perimeter must be 104 feet because 96 + 8 = 104.
Find the mistake and find the actual perimeter.
Answer:
96 is area, not side length.
Length = 96 ÷ 8 = 12
Perimeter = 2(12 + 8) = 40 feet
A school ordered:
Teachers used 278 markers.
The remaining markers were shared equally among 6 classrooms.
How many markers did each classroom receive?
Answer:
24 × 36 = 864
864 − 278 = 586
586 ÷ 6 = 97 remainder 4
A number has:
Create one possible number.
Possible Answer: 606.02
A farmer planted:
Then:
How many plants were placed in each garden?
Answer:
28 × 36 = 1,008
1,008 − 245 = 763
763 ÷ 7 = 109 plants
Three friends ate pizza:
Who ate the most and who ate the least?
Answer:
Most = Noah (3/8)
Least = Ava (1/4 = 2/8)
A room measures:
Tiles come in boxes that cover 21 square feet each.
How many boxes are needed to cover the floor completely?
Answer:
18 × 14 = 252 sq ft
252 ÷ 21 = 12 boxes
An amusement park sold:
Each ride holds 16 people.
If every person rides once, how many total rides are needed?
Answer:
1,248 + 976 = 2,224
2,224 ÷ 16 = 139 rides