Get Closest to a Target Value
Choose or arrange digits so a sum, weight estimate, or decimal lands as near as possible to a target — the smaller the gap, the better. Learners minimize the difference for sums, estimated weights, and card-built decimals, including placing consecutive numbers to hit a decimal sum. It blends estimation with optimization.
grade 3–4 MDNBTNFOA Guess and CheckEliminate Possibilities
Progression (4)
3-1 1. Choose digits for sum nearest a target 3.NBT.A.23.NBT.A.13.OA.D.8
3-2 2. Smaller error means a better weight estimate 3.MD.A.2
4-2 3. Build the decimal closest to a target from cards 5.NBT.B.74.NF.C.7
4-2 4. Place consecutive whole numbers to sum decimals 5.NBT.B.7