Expanded to standard forms conversion to thousand math quiz

Expanded to standard forms conversion to thousand math quiz for children in second grade, third grade and fourth grade. This is an educative and communicative online quiz that will teach kids how to convert a number that has already been expanded to reveal its place values into its standard form. For instance, 3000 + 600 + 70 + 6 = 3676. This is a gap-fill quiz and so, the students are expected to type in their answers, submit and check in soon as possible if the answer was right or wrong. This quiz can also be taken multiple times which will result in familiarity on the part of the students. This exercise is suitable for 2nd, 3rd, 4th and 5th-grade kids.