Add 4-Digit and 3-Digit Numbers with Regrouping: Missing Digits Worksheet

Students use the count on strategy or the relationship between addition and subtraction to find the missing number in this worksheet. They also need to regroup numbers to get to the answer in add 4-digit and 3-digit numbers with regrouping worksheet. In each problem, the numbers are laid out in the vertical format. In this format, pair of digits in each successive place are tackled one by one. This helps students follow a structured approach.