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
5 × 10 = ______
87 + 20 = ______
8 × 10 = ______
86 − 10 = ______
47 − 10 = ______
22 − 10 = ______
47 + 20 = ______
14 + 20 = ______
51 + 20 = ______
23 + 10 = ______
6 × 10 = ______
86 + 10 = ______
1 × 10 = ______
28 + 20 = ______
68 − 10 = ______
84 + 20 = ______
62 − 10 = ______
25 + 20 = ______
65 + 10 = ______
98 − 10 = ______
