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Missing Terms - CCSS 1.OA.B.4, 1.OA.D.8

Links verified on 12/23/2015

1. Exercises and Games -
1. Addition Completion - Complete the addition sentence by filling in the missing number.
2. Addition Fill-In - Fill in the blank with the missing term.
3. Addition with Missing Numbers - Select random or timed mode. Match the missing number to its correct value.
4. Fill It In - Fill in missing numbers to complete the sequence.
5. Find the Missing Number - Generate exercises by selecting the numbers to use (0-99), type of sequence, and number of problems.
6. Hit the Button - Click on "Number Bonds" and find "Missing Numbers." Choose addition (+ bonds) or subtraction (- bonds). Click on the number that is missing and try to work fast to do as many as possible in 1 minute.
7. Missing Numbers - Complete the Hundreds Chart by filling in the empty boxes with the missing numbers.
8. Missing Term Worksheet - Supply the missing term for ten problems. Self-checking.
9. Missing Value Game: Addition - Click on the number that is missing, but do it fast since you have 30 seconds per level!
10. Missing Value Game: Subtraction - Click on the number that is missing, but do it fast since you have 30 seconds per level!
11. Missing Value Targets - Aim for the missing term in each subtraction problem or addition problems. Work fast since you have 2 minutes to do 40 questions and each incorrect answer deducts points, so be careful!
12. Neighboring Numbers - Fill in the numbers that would neighbor the number provided.
13. Number Sequence - Find the missing term in each sequence.
14. Pattern Detectives - Identify and extend patterns in a variety of settings, audio is used to assist non-readers.
15. Penalty Shootout - A soccer game for one or two players. Answer the ten questions by picking the missing number in each sequence.
16. Subtraction Completion - Complete the subtraction sentence by filling in the missing number.
17. Subtraction Fill-In - Fill in the blank with the missing term.
18. What number would complete this sentence? - Find the missing term.

2. Indexes/Databases of Exercises and Games -
1. Missing Numbers - A variety of activities to find the missing numbers.

3. Practice Tests and Quizzes -
1. Determine the unknown number in each equation - Online quiz that is self checking.
2. Determine the Unknown Number in the Addition Equation (up to 20) - Online quiz that is self checking.
3. Determine the Unknown Number in the Subtraction Equation (up to 20) - Online quiz that is self checking.
4. Determine the Unknown Number in the Addition or Subtraction Equation (up to 20) - Online quiz that is self checking.
5. Missing Value Addition - Twenty question self-checking quiz using numbers 1-10. For a timed version of the quiz, go here.
6. Missing Value Subtraction - Twenty question self-checking quiz using numbers 1-10. For a timed version of the quiz, go here.

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