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
1 × 10 = ______
8 × 10 = ______
43 + 20 = ______
42 + 10 = ______
67 − 10 = ______
21 + 10 = ______
29 − 10 = ______
73 − 10 = ______
56 + 10 = ______
6 × 10 = ______
49 + 10 = ______
43 + 10 = ______
22 + 20 = ______
87 + 10 = ______
22 + 10 = ______
47 + 20 = ______
35 + 20 = ______
7 × 10 = ______
35 − 10 = ______
86 − 10 = ______
