Activities which cover combined addition and subtraction facts, for students developing familiarization with these facts.

• ### Doubling and Halving to 20 [PowerPoint TBM203]

35 slides. Doubling and halving numbers to 20. Mental strategy used with ten frames to encourage subitizing of answers. Counters animate. Interactive PowerPoint Think Bubble Math 203

• ### Count On and Back 1, 2, 3 [PowerPoint TBM102]

32 slides. Adding and subtracting using count on and back 1, 2, 3. Use number lines to help students count. Interactive PowerPoint Think Bubble Math 102

• ### Count On and Back 1, 2, 3

4 pp. Adding and subtraction using count on and back 1, 2, 3. Worksheets accompany “Count On and Back 1, 2, 3” [PowerPoint TBM102]

• ### Building to Ten, Rainbow Facts [PowerPoint TBM104]

39 slides. Addition and related turnaround facts linked with subtraction to make 10. Uses ten frames to visually link the fact families Rainbow facts are explored. Interactive PowerPoint Think Bubble Math 104

• ### Single Ten Frame

1 p. Single ten frame for duplication. There are two ten frames on the sheet. Print one per two students. Cut and laminate. Use with “Building to Ten, Rainbow Facts” [PowerPoint TBM104]

• ### Let’s Go Book 4: Addition & Subtraction Revision

[Members-only eBook] Complete 10-week program to teach Year 2 addition and subtraction number facts to 20. Includes checkup worksheets A to E, weekly homework sheets and all answer keys

• ### 10 Minutes a Day Level 1 Book 3: Addition & Subtraction Revision

[Members-only eBook] Complete 10-week program to revise addition and subtraction number facts to 20. Includes checkup worksheets A to E, weekly homework sheets and all answer keys

• ### Addition Number Facts: Teaching Strategies

Teaching Teacher notes: Strategies to teach all the addition facts. Count on, doubling, rainbows etc are all shown in detail.

• ### Subtraction Number Facts: Teaching Strategies

Teaching Teacher notes: Strategies to teach all the subtraction facts. Count back, halving, rainbows etc are all shown in detail.

• ### Introductory Addition: Count On 1, 2 & 3

Revision of the strategy of “Count on 1, 2 & 3”, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Subtraction: Count Back 1, 2 & 3

Revision of the strategy of “Count back 1, 2 & 3”, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Subtraction: Difference of 1, 2 & 3

Revision of the strategy of “Difference of 1, 2 & 3”, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Rainbow Facts

Revision of the Rainbow strategy, using a ten frame for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Double/ Halve

Revision of the strategy of “Doubling” or “Halving”, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Double Plus 1

Revision of the strategy related to “Doubles +1”, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Near 10 Plus 9 or 8

Revision of the “Near 10” strategies for +9 and +8 facts, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Remaining Facts

Revision of the remaining facts 7+4 and 7+5, using ten frames and number line for subitizing answers. Includes turnaround facts and missing number questions.

• ### Introductory Addition & Subtraction: Revision All to 20 Set A

Revision of all addition and subtraction facts to 20. Includes turnarounds and missing numbers.

• ### Introductory Addition & Subtraction: Revision All to 20 Set B

More revision of all addition and subtraction facts to 20. Includes turnarounds and missing numbers.

Set of 5 assessment tests to check on how students are progressing with each of the units in the Introductory Addition & Subtraction Facts series of worksheets.

Set of 10 homework sheets to match each of the sets in the Introductory Addition & Subtraction Facts series. Contains information for parents.

Template: Blank fact families sheet ready for the teacher to fill in as extra practice of all addition and matching subtraction and turnaround facts.

• ### Gadgets Number Facts: +1

Fact Families for the +1 facts. Match the addition with the subtraction and turnaround facts.

• ### Gadgets Number Facts: +2

Fact Families for the +2 facts. Match the addition with the subtraction and turnaround facts.

• ### Gadgets Number Facts: +3

Fact Families for the +3 facts. Match the addition with the subtraction and turnaround facts.

Fact Families for the Rainbow facts. Match the addition with the subtraction and turnaround facts.

• ### Gadgets Number Facts: +0 & +10

Fact Families for the +0 +10 facts. Match the addition with the subtraction and turnaround facts.

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Fact Families for the Double facts. Match the addition with the subtraction and turnaround facts.

Fact Families for the Double +1 facts. Match the addition with the subtraction and turnaround facts.

• ### Gadgets Number Facts: +9 Near 10

Fact Families for the +9 near 10 facts. Match the addition with the subtraction and turnaround facts.

• ### Gadgets Number Facts: +8 Near 10

Fact Families for the +8 near 10 facts. Match the addition with the subtraction and turnaround facts.