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
35 − 10 = ______
25 − 10 = ______
36 + 20 = ______
1 × 10 = ______
5 × 10 = ______
82 + 20 = ______
72 + 10 = ______
6 × 10 = ______
19 + 10 = ______
26 − 10 = ______
9 × 10 = ______
28 − 10 = ______
4 × 10 = ______
26 + 10 = ______
20 + 10 = ______
85 + 10 = ______
29 + 20 = ______
39 + 20 = ______
59 + 20 = ______
60 − 10 = ______
