When you make change you find the difference between the cost and what you paid.
You can count up or count down.
100
Compare "sum" and "difference."
They are the opposites. Sum is the answer to an addition problem. Difference is the answer to a subtraction problem.
100
Count by 5's to 50. Start at 15.
15, 20, 25, 30, 35, 40, 45, 50
100
______ = 30 + 60 50 + ______ = 90
90 = 30 + 60 50 + 40 = 90
200
You want to buy Silly Bandz for 68 Ȼ. You have 2 Q, 2 D, and 1 N. Do you have enough money? Explain.
Yes. I have 75 Ȼ which is more than 68 Ȼ.
200
Describe the minute hand. Describe the hour hand. Think of the song Ms. Campbell taught you.
The long hand is the minute hand. The short hand is the hour hand
200
Count by 25's to 150. Start at 0.
0, 25, 50, 75, 100, 150
200
Mary has 20 stickers. Jane gave her 15 more. How many stickers does she have now?
What kind of number story is this? Solve with unit.
Addition number story
35 stickers
300
You buy gum for 29 Ȼ and pay the clerk $1.00. How much change should you receive?
71 Ȼ
300
List 5 different Units.
Pencils, stickers, cents, cows, cats and more
300
At 4:00 pm, the temperature was 65 degrees F. At 9:00 pm, the temperature was 40 degrees F. What was the change?
What kind of number story is this? Solve with unit.
Subtraction number story
25 degrees
300
What is the range on a graph?
Name one kind of graph.
Range is the difference between the highest and the lowest number.
Bar graph is one kind of graph.
400
You buy a pineapple for 72 Ȼ. Show the coins you might use to pay the exact amount.
2 Q, 2 D, 2 P and other combinations
400
List all digits.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
400
20 90
+30 + 70
------- -------
20 90
+30 + 70
------- -------
50 160
500
You buy milk for 45 Ȼ. You give the lunch lady 3 Q. How much change should you receive?
30 Ȼ
500
What does place value tell you?
What is the place value of the 6 in 365?