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
76 + 20 = ______
6 × 10 = ______
33 − 10 = ______
69 + 20 = ______
74 − 10 = ______
17 + 10 = ______
42 − 10 = ______
38 − 10 = ______
3 × 10 = ______
74 + 20 = ______
55 + 20 = ______
5 × 10 = ______
75 + 10 = ______
33 + 20 = ______
7 × 10 = ______
25 + 10 = ______
4 × 10 = ______
8 × 10 = ______
44 − 10 = ______
67 + 10 = ______
