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
89 + 10 = ______
50 + 20 = ______
57 + 20 = ______
48 + 10 = ______
11 + 20 = ______
76 − 10 = ______
75 + 20 = ______
8 × 10 = ______
4 × 10 = ______
97 − 10 = ______
87 − 10 = ______
74 − 10 = ______
12 + 20 = ______
50 + 10 = ______
69 − 10 = ______
90 − 10 = ______
62 + 20 = ______
3 × 10 = ______
30 + 10 = ______
7 × 10 = ______
