NBT.5 Multiplication
What is 237 x 4?
948
Decompose the fraction 3/4 as a sum of unit fractions in two different ways
1/4 + 1/4 + 1/4
Write 0.7 as a fraction
7/10
Classify this quadrilateral: it has four right angles and only one pair of opposite sides equal.
A rectangle
A school orders 248 boxes of pencils. Each box contains 6 pencils.
After delivery, 360 pencils are given to students.
How many pencils are left?
248 x 6= 1,488
1,488-360=1,128 pencils left
A teacher says a student’s work shows 389 × 6 = 2,334. Decide whether the work is correct. If it’s incorrect, find the error and give the correct product using place-value reasoning.
389 × 6 = 2,334 is correct.
Add: 5/8 + 3/8. Show your model or equation and simplify if needed
5/8 + 3/8 = 8/8 = 1 whole.
Compare 0.6 and 0.59
0.6 >0.59
A theater has 56 rows with 34 seats in each row.
On Friday, 1,045 seats are filled.
How many seats are empty?
56 x 34= 1,904 seats
1,904 -1,045= 859
859 seats are empty
A farmer plants 55 rows of corn. Each row has 48 plants.
He sells 1,275 plants.
How many plants remain?
55 x 4840- 2,640
2,640-1,275= 1,365 plants left
462 x 3
1,386
4 × 3/5= Change to mixed number
12/5= 2 2/5
Convert 37/100 to a decimal
0.37
A garden bed is 4/7 meter wide. There are 8 identical beds.
What is the total width? Answer with a mixed number
4/7 x 8= 32/7 or 4 5/7 meters
Olivia ran 5/8 mile in the morning and 7/8 mile in the evening.
She wants to run 2 miles total.
How much farther does she need to run?
5/8+7/8=12/8 1 4/8
1 4/8 + 4/8= 2 miles
Answer is 4/8 or 1/2
A baker has 6 boxes with 246 cookies in each box. Use an area model (partial products) to find the total number of cookies and show your work.
1,476
Two students disagree: Student A says 1 2/5 − 3/10 = 1 1/10. Student B says 1 2/5 − 3/10 = 1 1/5. Decide who is correct
Student A is correct
What is 37/100 + 3/10?
67/100
A line plot shows the number of books read:
1,1,2,2,2,3,3,4
If each book represents 1/2 hour of reading:
Books: 1,1,2,2,2,3,3,4
Total books = 18
Each = 1/2 hour
Total time:
18 × 1/2= 18/2=9 hours
What type of angle is 135° ?
135 is an obtuse angle
Explanation: It is greater than 90°
Multiply 785 by 9
7,065
A team cleans 10 city blocks, and on Tuesday they cleaned 7/10 of that. How many blocks did they clean on Tuesday?
7 blocks
0.405 and 0.45 Which is larger?
0.45 has 5 hundredths, 0.405 has zero
A tank holds 12/12 gallon. It is filled with 5/12 gallon, then 4/12 gallon.
How much more is needed to fill the tank?
12/12- 9/12= 3/12 or 1/4
The following data shows lengths of snakes (in inches) 6,6,6,7,7,8,8,8,8,9,10,10, 12,12,12
12 snakes are longer
Difference between the longest and shortest is 6 inches