This chapter examines addition of two digit whole numbers. Add three numbers that are one, two, and three digit. Students will add numbers up to 3 digits with regrouping. Their earlier work on basic facts and place value provide the foundation necessary for adding greater numbers. This chapter focuses on addition with addends of up to four digits.
Many problems require regrouping more than once.
Students must also use the dollar sign and the decimal point in the sum. The valuable skill of estimation is introduced in this chapter. Estimation is introduced as a strategy for determining reasonable sums. Analyze problems with too little information to solve In some instances a solution may not be possible simply because not enough information is given. In this chapter if there is enough information, the problems will be solved and if there is not enough information the missing information will be stated.