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
44 − 10 = ______
5 × 10 = ______
3 × 10 = ______
13 + 10 = ______
48 + 20 = ______
23 + 10 = ______
79 + 10 = ______
20 + 20 = ______
4 × 10 = ______
74 + 20 = ______
73 + 20 = ______
71 + 10 = ______
67 − 10 = ______
54 + 10 = ______
28 + 20 = ______
68 − 10 = ______
6 × 10 = ______
9 × 10 = ______
77 + 10 = ______
91 − 10 = ______
