Add and Select the Odd One Out: Single Digit Numbers (With Regrouping)

This interactive activity challenges learners to analyze three different addition problems involving single-digit numbers. Two of the sums are equal but use different number pairs, while one is different. Students must carefully calculate and select the sum that stands out — the odd one out — encouraging critical thinking alongside addition practice with regrouping.

Key Features:

• Three-sum comparison per question

• Visual and numerical clues for each set

• Tap-to-select the odd sum out

• Encourages careful calculation and analysis

Skills Practiced:

• Addition with single-digit numbers

• Regrouping and number relationships

• Comparing and analyzing sums

• Critical thinking and problem-solving

Ideal For:

• Grade 1 and early Grade 2 learners

• Math warm-ups or digital challenge rounds

• Visual and logical learners

• Reinforcing number sense and reasoning