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
2 × 10 = ______
29 − 10 = ______
57 + 10 = ______
9 × 10 = ______
13 + 10 = ______
58 − 10 = ______
67 − 10 = ______
22 + 10 = ______
8 × 10 = ______
3 × 10 = ______
22 + 20 = ______
54 − 10 = ______
7 × 10 = ______
46 + 20 = ______
71 + 20 = ______
26 + 10 = ______
37 − 10 = ______
21 + 10 = ______
24 + 20 = ______
82 + 20 = ______
