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
8 × 10 = ______
53 + 20 = ______
84 + 10 = ______
58 + 10 = ______
7 × 10 = ______
47 + 10 = ______
62 + 10 = ______
6 × 10 = ______
96 − 10 = ______
5 × 10 = ______
52 + 20 = ______
52 − 10 = ______
1 × 10 = ______
87 − 10 = ______
29 − 10 = ______
2 × 10 = ______
86 + 10 = ______
43 + 10 = ______
11 + 20 = ______
32 + 20 = ______
