Problems are all addition with the unknown answer in one of three positions in each equation. Drag the correct number block to the blank gray square to complete the equation. Numbers used are within 10. More than 80 problems to solve.
Problems are all addition with the unknown answer in one of three positions in each equation. Drag the correct number block to the blank gray square to complete the equation. Numbers used are within 10. More than 80 problems to solve.