Composing and Decomposing Numbers: math test solutions, Kindergarten – download the PDF

1 The ten frame / 4 pts

1. There are 7 counters. (1 pt)
2. There are 3 empty squares. (1 pt)
3. \(7 + 3 = 10\). (1 pt)
4. \(3 + 7 = 10\). (1 pt)

2 Making 5 / 4 pts

1. \(4 + 1 = 5\). (1 pt)
2. \(2 + 3 = 5\). (1 pt)
3. \(5 = 3 + 2\). (1 pt)
4. Accept any correct pair other than the ones above, for example \(5 = 1 + 4\) or \(5 = 0 + 5\). (1 pt)

3 Pairs that make 10 / 4 pts

1. \(8 + 2 = 10\). (1 pt)
2. \(5 + 5 = 10\). (1 pt)
3. \(3 + 7 = 10\). (1 pt)
4. False, because \(6 + 3 = 9\). (1 pt)

4 A teen number / 4 pts

1. The full frame has 10 counters. (1 pt)
2. The second frame has 5 counters. (1 pt)
3. \(10 + 5 = 15\). (1 pt)
4. The teen number is 15. (1 pt)

5 Break apart teen numbers / 2 pts

1. \(17 = 10 + 7\). (1 pt)
2. \(12 = 10 + 2\). (1 pt)

6 Crayon box / 2 pts

Equation: \(10 + 4 = 14\). (1 pt)

Sentence: Mia has 14 crayons. (1 pt)