Singapore Math – Challenge Workbook for 3rd, 4th, 5th Grade Math, Paperback, Ages 8–11 with Answer Key

Chapters

• 1 Looking for a Pattern p.7
• 2 The Story of Gauss p.23
• 3 Using Models p.43
• 4 Intervals p.65
• 5 Solve by Comparison and Replacement p.86
• 6 Counting p.105
• 7 Tricks in Addition and Subtraction p.119
• 8 Tricks in Multiplication p.134
• 9 Working Backward p.152
• 10 Chicken-and-Rabbit Problems p.170
• 11 Logic p.187
• 12 Make a List p.206
• 13 Excess-and-Shortage Problems p.223
• 14 Math IQ p.235
• 15 Catching Up p.257
• 16 Digits, Numbers, and Multiples p.273
• 17 Perimeter of Squares and Rectangles p.292