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
80 − 10 = ______
66 + 20 = ______
12 + 10 = ______
3 × 10 = ______
21 + 20 = ______
26 − 10 = ______
36 − 10 = ______
53 + 10 = ______
4 × 10 = ______
37 − 10 = ______
78 + 10 = ______
2 × 10 = ______
25 + 20 = ______
45 + 10 = ______
60 − 10 = ______
98 − 10 = ______
13 + 10 = ______
8 × 10 = ______
7 × 10 = ______
82 + 20 = ______
