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
8 × 10 = ______
41 + 10 = ______
90 − 10 = ______
44 + 20 = ______
3 × 10 = ______
20 + 20 = ______
14 + 10 = ______
6 × 10 = ______
18 + 10 = ______
76 − 10 = ______
46 + 20 = ______
20 + 10 = ______
19 + 10 = ______
53 + 10 = ______
82 + 20 = ______
16 + 20 = ______
93 − 10 = ______
68 − 10 = ______
31 − 10 = ______
65 − 10 = ______
