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
37 − 10 = ______
14 + 20 = ______
42 − 10 = ______
2 × 10 = ______
3 × 10 = ______
63 + 20 = ______
77 + 20 = ______
82 − 10 = ______
45 − 10 = ______
9 × 10 = ______
36 + 10 = ______
71 − 10 = ______
48 + 10 = ______
88 − 10 = ______
36 − 10 = ______
61 + 20 = ______
41 + 20 = ______
24 − 10 = ______
26 + 20 = ______
6 × 10 = ______
