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
7 × 10 = ______
5 × 10 = ______
74 − 10 = ______
8 × 10 = ______
72 + 10 = ______
67 + 20 = ______
71 − 10 = ______
46 + 10 = ______
38 − 10 = ______
4 × 10 = ______
81 − 10 = ______
57 − 10 = ______
11 + 10 = ______
85 − 10 = ______
44 + 10 = ______
2 × 10 = ______
32 − 10 = ______
20 + 10 = ______
28 + 10 = ______
74 + 20 = ______
