Write this number in expanded form:
1 985 940
1000 000 + 900 000 + 80 000 + 5 000 + 900 + 40
8/100
1.98 x 1000
1980
Add: 3.4 + 5.87
9.27
Find an equivalent fraction to 3/4 with a denominator 24.
18/24
What is the value of the underlined digit (6) ?
17 950 675 949
600 000
7.007
0.93 x 10
9.3
Subtract: 12 - 7.34
4.66
Write 2 4/5 as an improper fraction
14/5
Write Two billion nine hundred fifteen million three thousand four in STANDARD FORM.
2 915 003 004
30÷(10−4)+2
7
One cockroach has a mass of 1.54 g. What is the mass of 100 cockroaches in kilograms?
154 g = 0.154 kg
Multiply 8.53 x 13
110.89
Write 23/7 as a mixed number.
3 2/7
The Cookie Jar:
Maria baked a batch of cookies. She noticed something interesting about the number of cookies she made:
How many cookies did Maria bake?
Conclusion: The number 25 fits all the conditions. It's between 20 and 30, divisible by 5, and can only be divided equally into groups where the number of groups is a prime number (specifically 5).
240 ÷ (155 - 75) + 27
10 000 marbles have a mass of 13 kg. What is the mass of one marble in grams?
0.0013 kg = 1.3 g
Teacher Fernanda wants to buy pencils to give to her students. Each pencil costs $1.82. She has 45 students.
a)How much will she pay for all the pencils?
b)She gave $100 to the cashier. How much was her change?
a) 1.82 x 45 = $81.90
b) 100 - 81.90 = $18.10
Order these improper fractions and mixed numbers from least to greatest
9/5 ; 11/10 ; 1 7/20
11/10 1 7/20 9/5
The combination for a school locker has three numbers. Here are some clues to figure out the combination:
What is a possible combination for the locker?
Possible Answers:
Possible combinations for the locker are:
56 ÷ 7 + (6 × 7) × 5 + 4
222
One penny has a mass of 2.35g. What is the mass of 1001 pennies?
2352.35g
Elys bought 4 t-shirts for $49.88.
a) What was the price of one t-shirt?
b) How much would she pay for 16 t-shirts?
a) 12.47
b) 199.52
Teacher Paula ate 17/12 pieces of chocolate. Ms. Elys ate 1 1/3 chocolates. Who ate more chocolate? Show your work.
Ms. Elys ate 4/3 = 16/12.
Therefore. Paula ate more = 17/12.