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
87 − 10 = ______
49 + 10 = ______
2 × 10 = ______
4 × 10 = ______
3 × 10 = ______
1 × 10 = ______
49 + 20 = ______
11 + 10 = ______
66 + 20 = ______
5 × 10 = ______
35 + 10 = ______
55 + 20 = ______
88 + 20 = ______
7 × 10 = ______
36 − 10 = ______
68 + 10 = ______
27 − 10 = ______
38 + 10 = ______
53 + 20 = ______
50 − 10 = ______
