Grade 1 Mathematics Chapter 4 | Teacher Guide and Answers

Grade 1 Mathematics Chapter 4: Addition and Subtraction Within 100

Student lessons | Daily practice | Teacher answers | Grade 1 home

Check answers and reasoning together. Reteach errors with new examples; keep learner work private.

Day 1: Regroup Ones

1. 27
2. 38
3. 33
4. Nine ones plus two ones become one ten and one one.

Day 2: Subtract Across a Ten

1. 43
2. 32
3. 27
4. 17

Day 3: Jump on a Number Line

1. 59
2. 53
3. 52
4. 45

Day 4: Solve Word Problems

1. 39
2. 35
3. 24
4. 24

Day 5: Independent Assessment

1. 43
2. 44
3. 58
4. 12

Assessment and reteaching

Four independent Day 5 questions are a brief check, not proof of mastery. Review errors, use fresh examples, and reassess.

Curriculum status: Developing supplemental chapter. Complete textbooks, fillable downloads, and verified Alabama academic standards mapping remain outstanding. Scripture Study is separate from academic standards.