Lesson 3

Handy Facts

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

Use this DPP item to practice the multiplication facts for 5s and 10s.

  1. 15
  2. 30
  3. 25
  4. 50
  5. 35
  6. 70
  7. 45
  8. 90

Students may see that 10 times a number is twice 5 times that number (because 10 is twice 5). They may also see that the solutions in the first column skip count by tens and that the solutions in the second column skip count by twenty. Also, students may see that multiples of 5 will end with the digits 0 or 5 and that multiples of ten end with the digit zero.

G. More Fives and Tens

  1. 5 × 3 =
  2. 10 × 3 =
  3. 5 × 5 =
  4. 10 × 5 =
  5. 5 × 7 =
  6. 10 × 7 =
  7. 5 × 9 =
  8. 10 × 9 =

What patterns do you see?