MENTAL MATH
"OUT OF" THE BLUE
PERCENT TO DECIMAL
TAX
DISCOUNTS
100
25% OF 400
What is 100?
100
16 OUT OF 32
What is 50%
100
450%
What is 4.5?
100
7% ON $40 (FIND TAX ONLY)
What is $2.80?
100
30% OFF OF $20 (FIND DISCOUNT ONLY)
What is $6?
200
10% OF 432
What is 43.2?
200
14 OUT OF 56
What is 25%?
200
32%
What is .32?
200
5% ON $80 (FIND TAX ONLY)
What is $4?
200
25% OFF OF $16 (FIND SALE PRICE)
What is $12?
300
100% OF 67
What is 67?
300
87 OUT OF 250 (ROUND)
What is 35%
300
7%
What is .07?
300
8% ON $15 (TAX ONLY)
What is $1.20?
300
40% OFF OF $27 (FIND SALE PRICE)
What is $16.20?
400
50% OF 2000
What is 1000
400
2700 OUT OF 3600
What is 75%?
400
14%
What is .14?
400
6.5% ON $50 (TAX ONLY)
What is $3.25?
400
20% OFF OF $75, WITH AN ADDITIONAL 40% OFF OF THE SALE PRICE (FIND FINAL COST)
What is $36?
500
30% OF 100
What is 30?
500
57 OUT OF 456
What is 12.5%?
500
500%
What is 5?
500
5% ON $340 (FIND TOTAL COST)
What is $357?
500
10% DISCOUNT OFF OF $50, PLUS A 5% SALES TAX (FIND FINAL PRICE)
What is $47.25?