Determine the number of right angles in the figure.
1 m
To form this picture, count the number of
  1. curved lines
  2. straight lines
1 m
TRY FOR FREE
Find the following values without a calculator.
  1. 42 + 4 = _____
  2. 35 + 7 = _____
  3. 48 + 3 = _____
  4. 59 + 18 = _____
1 m
TRY FOR FREE
Find the value of 1 unit.
  1. 5 u - 20 = 10
  2. 5 u - 20 = 1 u
  3. 10 = 5 u - 20
  4. 1 u = 5 u - 20
3 m
Find the following values without a calculator.
  1. 2, 3, ____
  2. 4, ____, 6
  3. 8, 9, ____
1 m
Find the following values without a calculator.
Choose the greatest number.
  1. 23, 63, 43
  2. 123, 213, 312
  3. 443, 344, 343
1 m
Find the following values without a calculator.
  1. 5 + 20 = _____
  2. 6 + 13 = _____
  3. 23 + 8 = _____
1 m
Find the following values without a calculator.

83102 =
  1. _____ ten thousands +
  2. _____ thousands +
  3. _____ hundreds +
  4. _____ ones
1 m
Find the following values without a calculator.
  1. 378 - 4 = _____
  2. 37 - 12 = _____
  3. 834 - 123 = _____
  4. 4698 - 235 = _____
1 m
Look at the picture. Give the answer in number. (Eg 1)
Which string of beads is the longest?
2 m