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
97 − 10 = ______
7 × 10 = ______
74 − 10 = ______
27 − 10 = ______
8 × 10 = ______
75 + 10 = ______
6 × 10 = ______
77 − 10 = ______
95 − 10 = ______
74 + 20 = ______
4 × 10 = ______
89 − 10 = ______
1 × 10 = ______
53 + 10 = ______
24 + 20 = ______
70 + 10 = ______
2 × 10 = ______
17 + 20 = ______
25 + 20 = ______
15 + 10 = ______
