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
74 − 10 = ______
48 − 10 = ______
8 × 10 = ______
88 − 10 = ______
13 + 20 = ______
46 + 20 = ______
27 + 20 = ______
38 + 20 = ______
1 × 10 = ______
5 × 10 = ______
29 − 10 = ______
40 + 10 = ______
53 + 10 = ______
37 − 10 = ______
66 − 10 = ______
27 + 10 = ______
61 + 20 = ______
18 + 10 = ______
4 × 10 = ______
82 − 10 = ______
