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
87 + 10 = ______
6 × 10 = ______
61 + 10 = ______
24 + 10 = ______
13 + 10 = ______
11 + 10 = ______
7 × 10 = ______
34 + 20 = ______
92 − 10 = ______
81 + 10 = ______
66 − 10 = ______
27 + 20 = ______
88 + 10 = ______
1 × 10 = ______
94 − 10 = ______
98 − 10 = ______
39 − 10 = ______
19 + 10 = ______
45 + 20 = ______
61 + 20 = ______
