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
73 − 10 = ______
8 × 10 = ______
6 × 10 = ______
75 + 10 = ______
5 × 10 = ______
11 + 20 = ______
9 × 10 = ______
2 × 10 = ______
56 − 10 = ______
77 − 10 = ______
27 + 20 = ______
23 + 10 = ______
7 × 10 = ______
4 × 10 = ______
34 − 10 = ______
28 + 20 = ______
30 + 20 = ______
63 + 20 = ______
89 − 10 = ______
74 + 20 = ______
