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
54 − 10 = ______
57 − 10 = ______
7 × 10 = ______
5 × 10 = ______
35 + 10 = ______
45 + 10 = ______
30 + 20 = ______
1 × 10 = ______
69 + 10 = ______
73 + 20 = ______
2 × 10 = ______
63 − 10 = ______
11 + 20 = ______
66 + 20 = ______
9 × 10 = ______
19 + 20 = ______
6 × 10 = ______
71 + 20 = ______
16 + 10 = ______
87 + 10 = ______
