- The child has learned addition and subtraction facts up to 20.
- The child has learned to mentally add and subtract single-digit numbers.
- The child has learned to mentally add and subtract two-digit numbers.
- The child has learned to mentally add and subtract three-digit numbers.
- The child has learned to mentally add and subtract numbers with regrouping.
- The child has learned to mentally solve word problems involving addition and subtraction.
- The child has learned to estimate sums and differences.
- The child has learned to mentally multiply single-digit numbers.
- The child has learned to mentally multiply two-digit numbers by single-digit numbers.
- The child has learned to mentally divide single-digit numbers.
- The child has learned to mentally divide two-digit numbers by single-digit numbers.
Continued development in mental math can be encouraged by introducing more complex problems and increasing the speed at which the child is expected to solve them. Additionally, incorporating mental math exercises into everyday activities, such as calculating the total cost of groceries or estimating the time it takes to complete a task, can help reinforce the skills learned in this activity. Encouraging the child to participate in mental math competitions or games can also provide a fun and engaging way to further develop their mental math abilities.