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
69 + 20 = ______
73 + 20 = ______
59 + 20 = ______
42 − 10 = ______
67 − 10 = ______
68 − 10 = ______
48 + 20 = ______
7 × 10 = ______
6 × 10 = ______
47 + 10 = ______
56 + 10 = ______
76 + 10 = ______
60 + 20 = ______
9 × 10 = ______
26 + 20 = ______
73 − 10 = ______
4 × 10 = ______
23 + 20 = ______
91 − 10 = ______
5 × 10 = ______
