Page 42 - NUMINO Challenge_A2
P. 42
Problem solving
1 A piece of origami paper is folded in half twice and Key Points
the colored portion is cut out. Draw the shape of
the unfolded piece of paper. Color the portion that Work backwards.
is cut out. Think about how the
piece of paper was
folded. Then, draw
the unfolded shape.
2 The piece of origami paper below has numbers The sum of numbers
written on it. The piece of paper is folded in half written on the
twice and then cut along the dotted lines. Color the cut-out portion is:
portion that must be cut out such that the sum of
numbers on the cut-out portion is 7. 23 4 1 14
14 3 223
2 323
1414
4 4 1 4 13.
4114 23
3223 14
2323
1414
39Geometry
1 A piece of origami paper is folded in half twice and Key Points
the colored portion is cut out. Draw the shape of
the unfolded piece of paper. Color the portion that Work backwards.
is cut out. Think about how the
piece of paper was
folded. Then, draw
the unfolded shape.
2 The piece of origami paper below has numbers The sum of numbers
written on it. The piece of paper is folded in half written on the
twice and then cut along the dotted lines. Color the cut-out portion is:
portion that must be cut out such that the sum of
numbers on the cut-out portion is 7. 23 4 1 14
14 3 223
2 323
1414
4 4 1 4 13.
4114 23
3223 14
2323
1414
39Geometry
