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
3 × 10 = ______
13 + 20 = ______
74 + 10 = ______
62 − 10 = ______
27 + 20 = ______
65 + 10 = ______
98 − 10 = ______
8 × 10 = ______
17 + 10 = ______
55 − 10 = ______
92 − 10 = ______
6 × 10 = ______
7 × 10 = ______
9 × 10 = ______
4 × 10 = ______
42 + 20 = ______
11 + 20 = ______
54 + 20 = ______
25 + 10 = ______
41 + 20 = ______
