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
68 − 10 = ______
85 + 20 = ______
45 − 10 = ______
82 + 20 = ______
55 − 10 = ______
68 + 10 = ______
22 − 10 = ______
78 + 20 = ______
1 × 10 = ______
88 + 10 = ______
99 − 10 = ______
7 × 10 = ______
96 − 10 = ______
85 + 10 = ______
29 + 10 = ______
4 × 10 = ______
2 × 10 = ______
53 + 10 = ______
52 − 10 = ______
21 + 10 = ______
