Page 2 - Test of Divisibility by 25, 50 and 100
P. 2
o 100 (ends in 00)
o 500 (ends in 00)
o 450 (ends in 50, not 00)
Fun Trick to Remember
• Ends in 00 = divisible by 25, 50, and 100
• Ends in 50 = divisible by 25 and 50
• Ends in 25 or 75 = divisible only by 25
Learning Outcomes:
Students will be able to:
• State the divisibility rule for 25, 50, and 100 in their own words.
• Recognize whether a number is divisible by 25, 50, or 100 by looking at its last two digits.
• Classify numbers correctly as divisible or not divisible using the rules.
• Solve basic problems involving divisibility using mental math.
• Demonstrate confidence in checking divisibility patterns independently.
