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
7 × 10 = ______
58 + 10 = ______
8 × 10 = ______
17 + 10 = ______
2 × 10 = ______
53 + 20 = ______
72 − 10 = ______
3 × 10 = ______
76 − 10 = ______
6 × 10 = ______
29 − 10 = ______
48 − 10 = ______
9 × 10 = ______
36 − 10 = ______
42 + 20 = ______
83 + 20 = ______
38 − 10 = ______
79 + 20 = ______
41 − 10 = ______
21 + 20 = ______
