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
31 − 10 = ______
8 × 10 = ______
55 + 20 = ______
42 − 10 = ______
58 + 10 = ______
1 × 10 = ______
95 − 10 = ______
5 × 10 = ______
38 + 10 = ______
56 − 10 = ______
38 + 20 = ______
76 + 10 = ______
76 + 20 = ______
47 + 20 = ______
55 − 10 = ______
38 − 10 = ______
72 + 10 = ______
91 − 10 = ______
80 + 20 = ______
34 − 10 = ______
