Cut a sheet of paper into 16 equal pieces.
1
Math 4.09
2
Odd and even
The laser beam is reflected in the mirrors as shown in the figure.What letter will he land on at the end of the path?
3
Add
2020+ = 2021+ 2021+ = 2022+ 2019+ = 2021+ 2018+ = 2019+ 2021+ = 2021+ 2020+ = 2024+
=2 = 1
=3 = 2
=5 = 5
=5 = 1
=3 = 1
4
37 + 40 =47 + 40 = 27 + 50 =37 + 50 =47 + 50 =
18 + 7 = 18 + 5 = 18 + 4 =19 + 1 = 19 + 3 =19 + 5 =
54 - 8 =54 - 7 =54 - 3 =54 - 9 =
5
Add and Subtract
19 + 1= 19 + 2= 19 + 3=19 - 1= 19 - 2= 19 - 3=999 + 1= 999 + 2= 999 + 3=900 - 1= 900 - 2= 900 - 3=
6
Multiply
12×5
23×5
29×5
209×5
299×5