singapore math singapore mathematics framework (2003) numerical calculation algebraic manipulation...
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Singapore Math
Singapore Mathematics Framework (2003)
Numerical calculationAlgebraic manipulation
Spatial visualizationData AnalysisMeasurement
Use of mathematical toolsEstimation
BeliefsInterests
AppreciationConfidence
PerseveranceMonitoring of one’s own thinkingSelf-regulation of learning
Reasoning, communication and connectionsThinking skills and heuristicsApplications and modeling
NumericalAlgebraic
GeometricalStatistical
ProbabilisticAnalytical
What is the sum of 7 and 4?
What is the sum of 7 and 4?
What is the sum of 7 and 4?
47+(3+1)
(7+3)+1
=10+1=117 +
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening.
a) How many balloons did he sell in all?b)How many more balloons did he sell
in the morning than in the evening?
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening.
Morning
230
Afternoon
86
a) How many balloons did he sell in all?
?
Hundreds Tens Ones
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening. How many did he sell in all?
3 1 6
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening.
a) How many balloons did he sell in all?
230 + 86230 + (70+16)
(230 + 70)+16300+16=316
316 balloons were sold in all.
Using Number Bonds
whole
part
part
316
86
230
Additionpart + part = whole
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening.
a) How many balloons did he sell in all?b)How many more balloons did he sell
in the morning than in the evening?
b)How many more balloons did he sell in the morning than in the evening?
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening.
Morning
Evening
230
86 ?
Hundreds Tens Ones
A man sold 230 balloons at a carnival in the morning. He sold another 86 balloons in the evening. How many more balloons did he sell in the morning than in the evening?
1 4 4
Using Number Bonds
whole
part
part
23086
144
whole
- part = part
Subtraction
Sally finds three times as many sea shells on Sunday as she did on Saturday. If she found 32 sea shells on Saturday, how many sea shells did she find in all?
Saturday 32
Sunday 32
32
32
?
Hundreds Tens Ones
Sally finds three times as many sea shells on Sunday as she did on Saturday. If she found 32 sea shells on Saturday, how many sea shells did she find in all?
1 82
Sally found 128 shells in all.
The number of cars is four times the number of motorcycles in a town. If there are 4,336 cars in the town, how many motorcycles are there?
4,336
?
The number of cars is four times the number of motorcycles in a town. If there are 4,336 cars in the town, how many motorcycles are there?
Thousands Hundreds Tens Ones
1 0 8 4
The total weight of Peter, David, and Henry is 123 kg. Peter is 15 kg heavier than David. David is 3 kg lighter than Henry. Find Henry’s weight.
Peter
David
Henry
15kg
3kg
123 kg
DD+15 D+3
+ + =123 kg
D+15 + D + D+3 = 123 kgD + D + D + 18 = 123 kg D + D + D = 105 kg
D = 35 kg
H = (35 + 3)kg
H = 38 kgHenry weighs 38 Kg
of the balls in a basket are green.1
4
1
8of the balls in a basket are purple.
If there are 240 balls in all, how many of the balls are neither green or purple?
240
?
If there are 240 balls in all, how many of the balls are neither green or purple?
240
?
240 8 30
30 3030 30 303030 30
5(30) 150150 of the balls are neither green or purple.