A mental math strategy where students subtract in steps to reach the nearest whole number first.
| Problem | Expression | Answer (Simplified Mixed Number) | | :--- | :--- | :--- | | 1 | ( 3 + \frac25 ) | ( 3 \frac25 ) | | 2 | ( 4 + \frac13 ) | ( 4 \frac13 ) | | 3 | ( 2 \frac14 + \frac24 ) | ( 2 \frac34 ) | | 4 | ( 1 \frac36 + \frac26 ) | ( 1 \frac56 ) | | 5 | ( 5 + \frac78 ) | ( 5 \frac78 ) | | 6 | ( 3 \frac510 + \frac710 ) | ( 4 \frac210 = 4 \frac15 ) | | 7 | ( \frac34 + \frac12 ) | ( 1 \frac14 ) | | 8 | ( 2 + \frac43 ) (improper fraction) | ( 3 \frac13 ) | | 9 | ( 4 \frac18 + \frac34 ) | ( 4 \frac78 ) | | 10 | Word problem: You have 2 whole pizzas and ( \frac35 ) of another. How much total? | ( 2 \frac35 ) pizzas | lesson 32 homework 4.5
To succeed, you must know these terms:
: The homework heavily emphasizes using number lines and arrow way models to visualize the subtraction "jumps". A mental math strategy where students subtract in
Add. Use a model to show your thinking. 3 2/5 + 2 4/5 | ( 2 \frac35 ) pizzas | To