Interpret Bar Graphs (Level II)
π΅οΈββοΈ Advanced Analysis! You know how to read the height of a bar. Now it's time to do addition and subtraction using the bars themselves!
Do this: Read the concept below, then try the quiz or activity.
Concept
In Level 1, we just asked "How many voted for Green?". You follow the bar and say "8". Level 2 takes the kid gloves off.
π― The Multi-Step Questions: 1. "How many MORE kids voted for Blue than Green?" * Find Blue (15). Find Green (8). * "How many more" means DIFFERENCE (Subtract!). * Math: 15 - 8 = 7. (7 more kids voted Blue).
2. "How many kids voted IN TOTAL?" * "In Total" means ADD EVERY SINGLE BAR TOGETHER. * Bar A (5) + Bar B (10) + Bar C (12) = ? * Stack em! 5 + 10 + 12 = 27 total kids voted!
Try it
Graph math is the hardest math!
Instructions: Find the numbers hidden in the graph, then use them to solve the math problem.
Bar Graph Data (Types of bugs caught): * Ants: 20 * Beetles: 15 * Spiders: 5 * Moths: 10
Problem 1: How many Spiders and Moths were caught altogether? * Math: (Spiders + Moths) -> ___ + ___ * Answer: ___ bugs.
Problem 2: How many MORE Ants were caught than Beetles? * Math: (Ants - Beetles) -> ___ - ___ * Answer: ___ more.
Problem 3: How many bugs were caught in TOTAL? * Math: 20 + 15 + 5 + 10 = ? (Hint: Find a "make 10" pair!) * Answer: ___ bugs.