Patterns
Complete the pattern: 48, 47, 46, 45...
44, 43, 42, 41...
Solve using your place value chart and place value disks.
67 + 68 = _____
125
Solve using your place value chart and place value chips. Unbundle when needed.
125 - 25 = _____
100
Solve the problem vertically.
43 + 52 = _____
95
What is the name of this form?
Two hundred forty plus seventy-two
Written form
Complete the pattern: 18, 28, 38, 48, 58...
68, 78, 88, 98...
Solve using your place value chart and place value disks.
74 + 57 = _____
131
Solve using your place value chart and place value chips. Unbundle when needed.
153 - 46 = _____
107
Solve the problem vertically.
123 + 64 = _____
187
What is the name of this form?
100 + 10 + 1
Expanded form
Here is a pattern: 20, 30, 40, 50, 60...
What is the rule?
+10
Solve using your place value chart and place value chips. Bundle a ten or hundred, if needed.
128 + 39 = _____
167
Solve using your place value chart and place value chips. Unbundle when needed.
118 - 79 = _____
39
Solve the problem vertically.
44 - 26 = _____
18
When you turn 10 ones into 1 ten, or 10 tens into 1 hundred is
Bundle, regroup, rename
Here is a pattern: 20, 40, 60, 80, 100...
What is the rule?
+20
Solve using your place value chart and place value chips. Bundle a ten or hundred, if needed.
136 + 39 = _____
175
Solve using your place value chart and place value chips. Unbundle when needed.
108 - 79 = _____
29
Solve the problem vertically.
102 - 64 = _____
38
When you turn 1 hundred into 10 tens, or 1 ten into 10 ones
Unbundle, regroup, rename
Here is a pattern: 120, 105, 90, 75, 60, 45, 30, 15...
What is the rule?
-15
Solve using your place value chart and place value chips. Bundle a ten or hundred, if needed.
200 + 138 = _____
338
Solve using your place value chart and place value chips. Unbundle when needed.
200 - 126 = _____
74
Solve the problem vertically.
200 - 131 + _____
69
A word problem asks, "how many are there left over?"
What operation does this problem use?
Subtraction