Streeeeetch Your Thinking (Extended Facts)
Solve each of the following extended facts on your whiteboard folder:
3 + ___ = 12
30 + ___ = 120
300 + ___ = 1,200
3 + 9 = 12
30 + 90 = 120
300 + 900 = 1,200
What word means:
The answer to a multiplication problem
Product
What's the rule:
2, 4, 6, 8, 10
+2
An alligator had 60 eggs. Only 12 hatched. How many did not hatch?
Write a number model AND the answer.
60-12=?
48 eggs did not hatch
Draw an array to represent the following number model:
2 x 9 = 18
2 rows, 9 columns
Solve each of the following extended facts on your whiteboard folder:
17 - 8 = ___
27 - 8 = ___
37 - 8 = ___
17 - 8 = 9
27 - 8 = 19
37 - 8 = 29
What word means:
The answer to a division problem
Quotient
What's the rule:
60, 50, 40, 30, 20
-10
Lisa had $22 in her bank account. On her birthday, her grandmother gave her $25. How much money does Lisa have in all?
Write a number model AND solve.
$22 + $25 = ?
Lisa has $47.
Draw an array to represent the following number model:
8 x 3 = 24
8 rows, 3 columns
Solve each of the following extended facts on your whiteboard folder:
8 + ___ = 21
80 + ___ = 210
800 + ___ = 2,100
8 + 13 = 21
80 + 130 = 210
800 + 1,300 = 2,100
What word means:
What is leftover after equally sharing in a division problem (only sometimes!)
Remainder
What's the rule:
12, 15, 18, 21, 24, 27, 30
x 3 OR +3
A package of crackers contains 6 crackers. You buy 2 packages and then eat 4 crackers. How many crackers are left over?
Write 2 number models to solve.
6 x 2 = 12
12 - 4 = 8
There are 8 crackers left over.
Draw an array to represent the following number model:
27 divided by 9 = 3
9 rows, 3 columns, 27 in all
Solve each of the following extended facts on your whiteboard folder:
40 + ___ = 82
400 + ___ = 820
4,000 + ___ = 8,200
40 + 42 = 82
400 + 420 = 820
4,000 + 4,200 = 8,200
What word means:
The numbers you multiply together in a multiplication sentence
Factor
Factor x Factor = Product
What's the rule:
40, 20, 10, 5
Divided by 2
Three friends equally share 15 almonds. One friend then eats 3 of her almonds. How many almonds does she have left?
Solve by writing number models.
15 / 3 = 5
5 - 3 = 2
This friend has 2 almonds left.
Draw an array to represent the following number model:
24 divided by 4 = 6
4 rows, 6 columns, 24 in all