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
51 + 10 = ______
8 × 10 = ______
4 × 10 = ______
3 × 10 = ______
39 + 10 = ______
59 − 10 = ______
32 − 10 = ______
68 − 10 = ______
33 + 20 = ______
23 + 10 = ______
58 + 20 = ______
88 − 10 = ______
70 − 10 = ______
42 + 20 = ______
6 × 10 = ______
83 + 10 = ______
50 − 10 = ______
11 + 10 = ______
50 + 10 = ______
35 − 10 = ______
