Lesson 4

Add Mixed Numbers

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

    1. 228 = 214
    2. 1612 = 112
    3. 1315 = 215
    1. 818 = 49
    2. 510 = 12
    3. 1430 = 715
  3. Strategies will vary. Possible response: I looked on the Fractions on Number Lines Chart. 45 is close to 1. 310 is a little less than 12. 45 − 310 will be close to 12.

Ongoing Assessment

Use DPP item M to assess students' abilities to represent and identify the simplest form [E2]; solve addition and subtraction problems involving fractions [E8]; and estimate sums and differences [E9].

M. Fractions

  1. Rewrite each of the following fractions as mixed numbers. Write all fractions in simplest form.
    1. 188
    2. 1812
    3. 1815
  2. Solve the following. Write your answers in simplest form. Estimate to be sure your answers are reasonable.
    1. 158 + 16 =
    2. 45 − 310 =
    3. 12 − 130 =
  3. Explain your estimation strategy for Question 2B.