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
62 + 10 = ______
82 − 10 = ______
36 + 10 = ______
69 − 10 = ______
1 × 10 = ______
59 + 20 = ______
14 + 20 = ______
3 × 10 = ______
18 + 10 = ______
86 + 10 = ______
24 − 10 = ______
85 − 10 = ______
61 + 10 = ______
13 + 20 = ______
50 + 20 = ______
93 − 10 = ______
54 − 10 = ______
7 × 10 = ______
31 + 10 = ______
90 − 10 = ______
