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
5 × 10 = ______
23 − 10 = ______
16 + 20 = ______
31 + 20 = ______
8 × 10 = ______
6 × 10 = ______
13 + 10 = ______
89 − 10 = ______
69 + 10 = ______
81 + 10 = ______
40 + 20 = ______
86 + 20 = ______
82 − 10 = ______
30 − 10 = ______
1 × 10 = ______
76 + 10 = ______
59 − 10 = ______
85 + 10 = ______
97 − 10 = ______
38 + 20 = ______
