Singapore Math Models

Addition Model Brandon has $120.00 in his checking account and $75.00 in his savings account. How much money does he have in all? ? $120.00 $75.00 $120.00+$75.00=$195.00

Subtraction Model Marsel has 90 baseball cards. He gives 30 cards to his brother. How many baseball cards does he have left? 90 ? 30 90-30=60

Comparison Model There are 300 books and 150 magazines in the library at school. How many more books are there than magazines? 300 150 ? 300-150=150

Items With a Difference Model A shirt costs $25.00. A pair of jeans costs $10.00 more than the shirt. How much are the jeans? Shirt $25.00 Jeans $25.00 $10.00 $25.00+$10.00=$35.00

Multiples Model Destiny bought 9 apples. She bought 3 times as many oranges as apples. How much fruit did she buy? Apples 9 ? Oranges 9 9 9 9+9+9+9=36

Multiples and Difference Model There are 20 students in class A. There are 5 more students in Class B than in Class A. There are 5 times as many students in Class C than in class A. How many students are there in all? 20 ? Class A Class B 5 Class C (20x7)+5=145

Sharing Model There are 8 marbles in Bag A and 4 marbles in Bag B. How many marbles must be moved from Bag A to Bag B so that both bags contain the same amount? Bag A 8 Bag B 4 8-4=4 4÷2=2 Each bag will have 6

Fractions Model Jake has 15 baseball cards. 3/5 of the cards are from the Atlanta Braves. 2/5 of the cards were from other teams. How many cards were from the Atlanta Braves? 15 3 3x3=9

Ratio Model A recipe calls for 1 cup of sugar for every 2 cups of flour. If we double the recipe and use 2 cups of sugar, how many cups of flour will we need? Sugar Flour 2+2=4

Comparison of Fractions Model Maggie is 2/3 of Blake’s height. Blake is 3/4 of Noah’s height. If Noah is 160 cm. tall, find Maggie’s height and Blake’s height. Maggie 40cm+40cm=80cm 40cm+40cm+40cm= 120cm Blake Noah 160cm÷4= 40 cm per box