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
1 × 10 = ______
53 − 10 = ______
82 + 20 = ______
55 − 10 = ______
4 × 10 = ______
9 × 10 = ______
62 − 10 = ______
66 + 20 = ______
89 + 10 = ______
75 − 10 = ______
19 + 10 = ______
58 + 10 = ______
78 + 10 = ______
24 + 10 = ______
30 − 10 = ______
6 × 10 = ______
61 − 10 = ______
23 − 10 = ______
89 − 10 = ______
19 + 20 = ______
