Add & Sub
Solve.
754 + 212 = _____
966
9 x 5 = ______
45
What does area measure?
Area measures the space that can be covered.
Is 58 even or odd? How do you know?
Even because 8 in the ones place is an even digit so the entire number, 58, is even.
Compare. Use <, >, or =
457 _______ 400 + 70 + 5
457 < 475
Solve.
348 - 213 = _____
135
36/4 = ______
36/4 = 9
What is area measured in?
Area is measured in square units.
What is the value of two quarters?
25 cents + 25 cents = 50 cents
What are 4 related facts for the numbers 5, 7, and 35?
5 x 7 = 35
7 x 5 = 35
35/7=5
35/5=7
What is the sum of 455 and 278?
733
What is the product of 8 and 6?
6 x 8 = 48
What is the area of a carpet that is 2 units long and 3 units wide?
A = L x W
A = 2 x 3
A = 6 square units
Name 3 odd numbers you know. Prove why they are odd.
Example: 13, 217, and 511
Each of the numbers has an odd digit in the ones place, so all of the numbers are odd.
Mrs. OBrien has 18 tens.
Mrs. Ricci has 12 tens.
How much value does each teacher have?
18 tens = 180
12 tens = 120
What is the difference of 875 and 319?
875 - 319 = 556
What is the quotient of 20 and 2?
20/2 = 10
Which answer is one that measured area?
12 units
12 inches
12 square units
12 square units because area is always measured in SQUARE units.
What is the value of 3 quarters, 2 dimes, and 1 nickel?
75 cents + 20 cents + 5 cents = $1
Draw an array to show:
3 rows of 5
XXXXX
XXXXX
XXXXX
Mrs. Ricci packed 215 boxes when moving her house. Her husband packed 187 boxes for the move. How many more boxes did Mrs. Ricci pack than her husband?
215 - 187 = 28 more boxes
Mrs. O'Brien needed to put students into equal groups. There were 21 students in the class. If she made 3 groups, how many students were in each group?
21/3 = 7 students per group
The length of Coburn playground is 10 feet. The width of the playground is 8 feet wide. What is the area of Coburn playground?
10 x 8 = 80 square feet
Name two even numbers greater than 700. How do you know they are even and greater?
Example: 704 and 888
Even numbers have digits 0, 2, 4, 6, or 8 in the ones place. These two numbers all have a value greater than 700.
Mrs. O'Brien earned $35 working after school. She spent $8 on lunch and $12 on snacks. How much money does she have left?
8 + 12 = 20
35 - 20 = $15
She has $15 left.