Catch the bugs by moving the frog along the number line. Count forwards or backwards on the number line between the frog and the bug. Select the equation which displays the correct operator and matches your count. If you miss the bug will fly away and come back to a new spot on the number line.
Grade 1 » Operations & Algebraic Thinking
Add and subtract within 20: Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).