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
63 − 10 = ______
9 × 10 = ______
43 − 10 = ______
58 + 20 = ______
39 + 20 = ______
55 + 20 = ______
72 + 10 = ______
60 + 10 = ______
25 − 10 = ______
7 × 10 = ______
31 + 20 = ______
5 × 10 = ______
11 + 20 = ______
67 + 10 = ______
1 × 10 = ______
8 × 10 = ______
87 + 10 = ______
30 + 10 = ______
40 − 10 = ______
61 + 20 = ______
