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
35 + 10 = ______
1 × 10 = ______
59 + 20 = ______
97 − 10 = ______
34 + 10 = ______
85 − 10 = ______
28 + 20 = ______
3 × 10 = ______
26 − 10 = ______
12 + 20 = ______
37 + 10 = ______
93 − 10 = ______
11 + 10 = ______
65 − 10 = ______
51 + 10 = ______
51 + 20 = ______
41 + 10 = ______
61 + 20 = ______
67 − 10 = ______
84 − 10 = ______
