Fraction Operations
What is 1/4 + 2/4?
3/4
What is 3 × 1/4?
3/4
Write 3/10 as a decimal.
0.3
Classify: Name a quadrilateral that has two pairs of parallel sides.
Parallelogram
Rectangle
Square
Multiply using an area model: 123 × 4. Show partial products and give the total
100 x 4 = 400
20 x 4 = 80
3 x 4 = 12
Total = 492
What is 5/8 − 3/8?
2/8
1/4
What is 5 × 2/3?
10/3
3 1/3
Add: 0.7 + 0.25 (convert and compute)
0.95
95/100
These lines never meet.
These lines cross at a right angle.
Parallel lines
Perpendicular lines
This is the product of 23 × 4.
92
Mrs. Lee baked 3/6 of a pie and ate 1/6. How much is left?
2/6
1/3
A student reads 1/5 of a book each day for 4 days. How much did they read?
4/5
Write 45/100 as a decimal.
0.45
Data: Is the question "How many pets do you have?" categorical or numerical?
Numerical
This is the product of 34 × 12.
408
Are 2/4 and 1/2 equivalent? Explain.
Yes, they are equal
What is 6 × 1/2?
6/2
3
Compare: 0.62 ___ 0.26
0.62 > 0.26
Geometry: A triangle has two equal sides and a different third side. What type of triangle is this by side lengths?
Isosceles
What is 236 × 3?
708
What is 7/10 + 2/10?
9/10
What is 8 × 3/4?
24/4
6
Which is smallest: 0.8, 0.08, 0.18?
0.08
This angle is greater than 90 but less than 180 degrees.
This angle measures exactly 90 degrees.
This angle is less than 90 degrees.
Obtuse angle
Right angle
Acute angle
This explains how partial products help multiplication.
Break numbers apart and multiply in parts.