Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
71 − 10 = ______
37 − 10 = ______
5 × 10 = ______
61 + 20 = ______
82 + 10 = ______
9 × 10 = ______
40 + 20 = ______
6 × 10 = ______
45 − 10 = ______
28 + 10 = ______
59 − 10 = ______
3 × 10 = ______
80 + 10 = ______
1 × 10 = ______
44 − 10 = ______
26 + 20 = ______
48 + 10 = ______
43 + 10 = ______
79 + 20 = ______
75 − 10 = ______
