Grade 4 - Number
Standard 4.N.5 - Practice division word problems with numbers up to 10.
Included Skills: Division
Describe and apply mental mathematics strategies, such as: • skip counting from a known fact • using doubling or halving • using doubling or halving and adding or subtracting one more group • using patterns in the 9s facts • using repeated doubling to determine basic multiplication facts to 9 × 9 and related division facts. • Achievement Indicators - Provide examples for applying mental mathematics strategies: • doubling, e.g., for 4 × 3, think 2 × 3 = 6, and 4 × 3 = 6 + 6 • doubling and adding one more group, e.g., for 3 × 7, think 2 × 7 = 14, and 14 + 7 = 21 • use ten facts when multiplying by 9, e.g., for 9 × 6, think 10 × 6 = 60, and 60 – 6 = 54; for 7 × 9, think 7 × 10 = 70, and 70 – 7 = 63 • halving, e.g., if 4 × 6 is equal to 24, then 2 × 6 is equal to 12 • relating division to multiplication, e.g., for 64 ÷ 8, think 8 × ? = 64.