Number Sense
What digit is in the thousands place in the number 48,726?
Answer: 8
What is a variable?
A variable is a letter or symbol that represents an unknown number.
What is 8 × 7?
Answer: 56
Write 0.4 as a fraction.
Answer: 4/10 or 2/5
How many centimetres are in 3 metres?
Answer: 300 cm
Write 60,405 in expanded form.
Answer: 60,000 + 400 + 5
What is the missing number?
15, 19, ___, 27, 31
Complete the fact family:
8 x __ = 72
__ x __ = 72
72/___ = 9
___ / ___ = 72
8 x 9 = 72
9 x 8 = 72
72/ 8 = 9
72 / 9 = 8
Which number is greater?
0.65 or 0.56
Answer: 0.65
Round 8,451 to the nearest hundred.
Answer: 8,500
Round 27,648 to the nearest thousand.
Answer: 28,000
Use the rule n × 3 + 1
What is the output when n = 6?
Answer: 19
A class has 28 students. Each student receives 5 notebooks. How many notebooks are needed?
Answer: 140
0.7 + 0.35
Answer: 1.05
A rectangle has a length of 12 cm and a width of 7 cm. What is its perimeter?
Answer: 38 cm
Estimate the sum by rounding each number to the nearest thousand:
4,782 + 3,215
Answer:
5,000 + 3,000 = 8,000
Find the value of n.
n + 18 = 45
Answer: 27
What is 48 × 16?
*you must discuss the strategy used*
Answer: 768
Use a preferred strategy to solve: 15.8 + 2.4
Answer: 18.2
A pizza is cut into 12 equal slices. Five slices are eaten. What fraction of the pizza remains?
Answer: 7/12
A community food drive collected 12,485 cans in the fall and 9,768 cans in the spring. They donated 5,250 cans to local food banks. How many cans remained?
Answer:
12,485 + 9,768 = 22,253
22,253 − 5,250 = 17,003 cans
Complete the table using the rule: (n × 2) + 3
In Out
4 11
8 19
15 ?
Answer: 33
Estimate: 7 x 368
Answer: 2800
Use a preferred strategy to solve: 9.07 - 2.74
Answer: 6.33
A rectangular playground is 25 m long and 18 m wide.
A fence will be built around the entire playground.
How many metres of fencing are needed?
Perimeter = 86 m