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
20 + 10 = ______
6 × 10 = ______
69 + 10 = ______
49 + 10 = ______
42 − 10 = ______
2 × 10 = ______
73 + 10 = ______
45 + 10 = ______
16 + 10 = ______
82 + 10 = ______
62 + 20 = ______
65 − 10 = ______
26 − 10 = ______
23 + 20 = ______
3 × 10 = ______
9 × 10 = ______
67 + 10 = ______
31 − 10 = ______
77 + 20 = ______
76 − 10 = ______
