Figure 1
Ducks, subtraction as change take from. Kavén & Persson (2011). Mattedetektiverna. 1A, p. 53. Illustrator: Nilsson Thore, Maria.
Figure 2
Dots and stars, subtraction as change take from. Kavén & Persson (2011). Mattedetektiverna. 1A, p. 58. Illustrator: Nilsson Thore, Maria.
Figure 3
Polly and Milton 1, subtraction as compare. Brorsson. (2014a). Prima matematik 1A. Illustrator: Kristiansson, Johanna.
Figure 4
Polly and Milton 2, subtraction as compare. Brorsson. (2014b). Prima matematik. Digital textbook. Illustrator: Kristiansson, Johanna. Screen shot 170327.