Lesson 3.1 Using Doubles Facts

IXL: 
E.10 Add doubles using models
E.11 Add doubles
E.12 Add doubles - complete the sentence 

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Lesson 3.2 Practice Addition Facts

IXL:

E.1 Review - add one-digit numbers - sums to 10 
E.4 Addition with pictures - sums to 20
E.7 Add one-digit numbers
E.9 Add zero
E.11 Add doubles
E.13 Addition word problems - one digit
See also:
E.2 Review - ways to make a number - sums to 10 
E.14 Complete the addition sentence - one digit 

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Lesson 3.3 Make a 10 to Add

IXL:
E.14 Complete the addition sentence - one digit 
E.16 Balance addition equations - one digit 

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Lesson 3.4 Add 3 Addends

IXL:
E.18 Add three one-digit numbers 
E.19 Add three one-digit numbers: word problems 

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Lesson 3.5 Relate Addition and Subtraction

IXL:
K.3 Fact families
See also:
K.1 Related addition facts
​K.2 Related subtraction facts 

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Lesson 3.6 Practice Subtraction Facts

IXL:
F.1 Review - subtract one-digit numbers - up to 10 
F.5 Subtraction with pictures 
F.8 Subtract a one-digit number from a two- digit number up to 18 
F.9 Subtraction input/output tables - up to 18 
F.10 Subtract zero/all
See also:
F.2 Review - ways to subtract - up to 10
F.12 Complete the subtraction sentence - up to 18
F.15 Subtraction equations: true or false? 

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Lesson 3.7 Use 10 to Subtract

IXL:
NO IXL recommendations

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Lesson 3.8 Use Drawings to Represent Numbers

IXL:
No IXL recommendations

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Lesson 3.9 Use Equations to Represent Numbers

IXL:  
E.13 Addition word problems - one digit 
E.15 Write the addition sentence - one digit
F.11 Subtraction word problems - up to 18 
F.13 Write the subtraction sentence - up to 18 

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Lesson 3.10 Problem Solving Equal Groups

IXL:
E.13 Addition word problems - one digit  

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3.11 Repeated Addition

E.22 Identify repeated addition in arrays: sums
to 10
E.23 Write addition sentences for arrays: sums to 10 
E.24 Identify repeated addition in arrays: sums to 25 
E.25 Write addition sentences for arrays: sums to 25 

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