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
8 × 10 = ______
54 + 10 = ______
19 + 10 = ______
83 + 20 = ______
42 + 10 = ______
17 + 10 = ______
22 + 20 = ______
4 × 10 = ______
2 × 10 = ______
69 + 20 = ______
50 + 20 = ______
28 − 10 = ______
22 + 10 = ______
45 − 10 = ______
74 + 20 = ______
27 − 10 = ______
71 − 10 = ______
56 + 20 = ______
98 − 10 = ______
1 × 10 = ______
