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
11 + 10 = ______
17 + 10 = ______
48 + 10 = ______
6 × 10 = ______
1 × 10 = ______
37 − 10 = ______
23 + 20 = ______
59 − 10 = ______
2 × 10 = ______
5 × 10 = ______
82 − 10 = ______
73 + 20 = ______
92 − 10 = ______
12 + 10 = ______
87 + 20 = ______
3 × 10 = ______
41 + 20 = ______
70 − 10 = ______
53 − 10 = ______
39 − 10 = ______
