CP2 Review

Presentation

•

Mathematics

•

2nd Grade

•

Medium

•

CCSS

2.OA.A.1, 1.OA.C.6, 1.NBT.C.5

Standards-aligned

Morgan Rankin

Used 13+ times

FREE Resource

10 Slides • 12 Questions

CP2 Review

Addition and Subtraction of 2 Digit Numbers

Fluently Add and Subtract within 30

Pay close attention to the symbols!

Multiple Choice

14 + 9

Multiple Choice

25 - 9

Multiple Choice

8 + 9

Multiple Choice

28 - 7

Solve Word Problems

Read the whole question

What do you need to find? Highlight it
What do you already know? Circle It
Solve using a strategy - model, equation

Fill in the Blanks

You have 45 candy canes. I have 59 candy canes. How many more candy canes do I have than you?

Type answer...

Fill in the Blanks

There are 7 black cats, 8 brown cats and 11 tabby cats at the shelter. How many cats do they have in all?

Type answer...

Adding Up to 4 2-digit numbers

Stack the numbers

Look for facts you know in the ones
Regroup into the tens
Look for facts you know in the tens

You could use expanded form

76 + 10 + 13 could also be solved by adding up:

6 + 0 + 3 = ______

70 + 10 + 10 = ______

Then put your two answers together!

Multiple Choice

15 + 13 + 17 =

Multiple Choice

22 + 18 + 19 + 3=

Add and Subtract 10 and 100

Use Place Value

If you are adding or subtracting 10, you only change the tens (unless it is near a new hundreds)
If you are adding or subtracting 100, you only change the hundreds (unless your new number is less than 100, or more than 999!)

95 + 10

95 has a 9 in the tens. Adding a ten, gives you ten tens. That means your answer has to more than 100.

Multiple Choice

92 + 10

102

192

Multiple Choice

107 - 10

117

Multiple Choice

There are 145 balls in the gym. Coach gave 100 away for recess. How many balls are left?

245

135

155

Multiple Choice

There are 453 students in grade 2 in JC Schools. 100 students move away. How many students are there now?

443

354

553

CP2 Review

Addition and Subtraction of 2 Digit Numbers

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